Home / 12,907,459,417.80-19,361,189,126.70-12,620,804,953.80

Finding the Fourth Proportional to 12,907,459,417.80, 19,361,189,126.70 and 12,620,804,953.80

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Solution

The fourth proportional to 12,907,459,417.80, 19,361,189,126.70 and 12,620,804,953.80 is: 18,931,207,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907,459,417.80 : 19,361,189,126.70 = 12,620,804,953.80 : x
  2. Step 2: Convert to fraction form
    12,907,459,417.80/19,361,189,126.70 = 12,620,804,953.80/x
  3. Step 3: Cross multiply
    12,907,459,417.80x = 19,361,189,126.70 × 12,620,804,953.80
  4. Step 4: Simplify right side
    12,907,459,417.80x = 244,353,791,641,714,065,408
  5. Step 5: Solve for x
    x = 244,353,791,641,714,065,408/12,907,459,417.80
  6. Step 6: Final answer
    x = 18,931,207,430.70

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Double scale
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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.