Home / 103,690,388,018.30-155,535,582,027.45-102,037,393,931.90

Finding the Fourth Proportional to 103,690,388,018.30, 155,535,582,027.45 and 102,037,393,931.90

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Solution

The fourth proportional to 103,690,388,018.30, 155,535,582,027.45 and 102,037,393,931.90 is: 153,056,090,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,690,388,018.30 : 155,535,582,027.45 = 102,037,393,931.90 : x
  2. Step 2: Convert to fraction form
    103,690,388,018.30/155,535,582,027.45 = 102,037,393,931.90/x
  3. Step 3: Cross multiply
    103,690,388,018.30x = 155,535,582,027.45 × 102,037,393,931.90
  4. Step 4: Simplify right side
    103,690,388,018.30x = 15,870,445,453,762,260,631,552
  5. Step 5: Solve for x
    x = 15,870,445,453,762,260,631,552/103,690,388,018.30
  6. Step 6: Final answer
    x = 153,056,090,897.85

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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.