Home / 1,438,896,128.60-2,154,944,272.98-702,470,359.64

Finding the Fourth Proportional to 1,438,896,128.60, 2,154,944,272.98 and 702,470,359.64

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Solution

The fourth proportional to 1,438,896,128.60, 2,154,944,272.98 and 702,470,359.64 is: 1,052,045,695.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,896,128.60 : 2,154,944,272.98 = 702,470,359.64 : x
  2. Step 2: Convert to fraction form
    1,438,896,128.60/2,154,944,272.98 = 702,470,359.64/x
  3. Step 3: Cross multiply
    1,438,896,128.60x = 2,154,944,272.98 × 702,470,359.64
  4. Step 4: Simplify right side
    1,438,896,128.60x = 1,513,784,478,444,418,816
  5. Step 5: Solve for x
    x = 1,513,784,478,444,418,816/1,438,896,128.60
  6. Step 6: Final answer
    x = 1,052,045,695.56

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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.