Home / 813,931,731.36-1,123,201,734.48-461,539,896.48

Finding the Fourth Proportional to 813,931,731.36, 1,123,201,734.48 and 461,539,896.48

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Solution

The fourth proportional to 813,931,731.36, 1,123,201,734.48 and 461,539,896.48 is: 636,911,416.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,931,731.36 : 1,123,201,734.48 = 461,539,896.48 : x
  2. Step 2: Convert to fraction form
    813,931,731.36/1,123,201,734.48 = 461,539,896.48/x
  3. Step 3: Cross multiply
    813,931,731.36x = 1,123,201,734.48 × 461,539,896.48
  4. Step 4: Simplify right side
    813,931,731.36x = 518,402,412,258,055,680
  5. Step 5: Solve for x
    x = 518,402,412,258,055,680/813,931,731.36
  6. Step 6: Final answer
    x = 636,911,416.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.