Home / 1,259,721,005.20-1,889,581,507.80-532,709,717.20

Finding the Fourth Proportional to 1,259,721,005.20, 1,889,581,507.80 and 532,709,717.20

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Solution

The fourth proportional to 1,259,721,005.20, 1,889,581,507.80 and 532,709,717.20 is: 799,064,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,721,005.20 : 1,889,581,507.80 = 532,709,717.20 : x
  2. Step 2: Convert to fraction form
    1,259,721,005.20/1,889,581,507.80 = 532,709,717.20/x
  3. Step 3: Cross multiply
    1,259,721,005.20x = 1,889,581,507.80 × 532,709,717.20
  4. Step 4: Simplify right side
    1,259,721,005.20x = 1,006,598,430,646,487,552
  5. Step 5: Solve for x
    x = 1,006,598,430,646,487,552/1,259,721,005.20
  6. Step 6: Final answer
    x = 799,064,575.80

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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.