Home / 528,063,502.80-792,059,824.80-139,878,001.20

Finding the Fourth Proportional to 528,063,502.80, 792,059,824.80 and 139,878,001.20

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Solution

The fourth proportional to 528,063,502.80, 792,059,824.80 and 139,878,001.20 is: 209,807,616.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,063,502.80 : 792,059,824.80 = 139,878,001.20 : x
  2. Step 2: Convert to fraction form
    528,063,502.80/792,059,824.80 = 139,878,001.20/x
  3. Step 3: Cross multiply
    528,063,502.80x = 792,059,824.80 × 139,878,001.20
  4. Step 4: Simplify right side
    528,063,502.80x = 110,791,745,123,846,176
  5. Step 5: Solve for x
    x = 110,791,745,123,846,176/528,063,502.80
  6. Step 6: Final answer
    x = 209,807,616.96

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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.