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Finding the Fourth Proportional to 870,816,549.68, 1,201,726,903.56 and 479,675,973.68

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Solution

The fourth proportional to 870,816,549.68, 1,201,726,903.56 and 479,675,973.68 is: 661,952,879.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,816,549.68 : 1,201,726,903.56 = 479,675,973.68 : x
  2. Step 2: Convert to fraction form
    870,816,549.68/1,201,726,903.56 = 479,675,973.68/x
  3. Step 3: Cross multiply
    870,816,549.68x = 1,201,726,903.56 × 479,675,973.68
  4. Step 4: Simplify right side
    870,816,549.68x = 576,439,522,562,594,432
  5. Step 5: Solve for x
    x = 576,439,522,562,594,432/870,816,549.68
  6. Step 6: Final answer
    x = 661,952,879.48

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