Home / 12,674,860,278.40-19,012,290,417.60-12,137,467,139.20

Finding the Fourth Proportional to 12,674,860,278.40, 19,012,290,417.60 and 12,137,467,139.20

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Solution

The fourth proportional to 12,674,860,278.40, 19,012,290,417.60 and 12,137,467,139.20 is: 18,206,200,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674,860,278.40 : 19,012,290,417.60 = 12,137,467,139.20 : x
  2. Step 2: Convert to fraction form
    12,674,860,278.40/19,012,290,417.60 = 12,137,467,139.20/x
  3. Step 3: Cross multiply
    12,674,860,278.40x = 19,012,290,417.60 × 12,137,467,139.20
  4. Step 4: Simplify right side
    12,674,860,278.40x = 230,761,050,184,547,041,280
  5. Step 5: Solve for x
    x = 230,761,050,184,547,041,280/12,674,860,278.40
  6. Step 6: Final answer
    x = 18,206,200,708.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.