Home / 7,091,712,139.20-10,637,568,208.80-3,221,876,875.20

Finding the Fourth Proportional to 7,091,712,139.20, 10,637,568,208.80 and 3,221,876,875.20

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Solution

The fourth proportional to 7,091,712,139.20, 10,637,568,208.80 and 3,221,876,875.20 is: 4,832,815,312.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091,712,139.20 : 10,637,568,208.80 = 3,221,876,875.20 : x
  2. Step 2: Convert to fraction form
    7,091,712,139.20/10,637,568,208.80 = 3,221,876,875.20/x
  3. Step 3: Cross multiply
    7,091,712,139.20x = 10,637,568,208.80 × 3,221,876,875.20
  4. Step 4: Simplify right side
    7,091,712,139.20x = 34,272,935,020,295,401,472
  5. Step 5: Solve for x
    x = 34,272,935,020,295,401,472/7,091,712,139.20
  6. Step 6: Final answer
    x = 4,832,815,312.80

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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.