Home / 660,554,061.40-990,831,092.10-442,875,827.80

Finding the Fourth Proportional to 660,554,061.40, 990,831,092.10 and 442,875,827.80

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Solution

The fourth proportional to 660,554,061.40, 990,831,092.10 and 442,875,827.80 is: 664,313,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,554,061.40 : 990,831,092.10 = 442,875,827.80 : x
  2. Step 2: Convert to fraction form
    660,554,061.40/990,831,092.10 = 442,875,827.80/x
  3. Step 3: Cross multiply
    660,554,061.40x = 990,831,092.10 × 442,875,827.80
  4. Step 4: Simplify right side
    660,554,061.40x = 438,815,140,123,765,568
  5. Step 5: Solve for x
    x = 438,815,140,123,765,568/660,554,061.40
  6. Step 6: Final answer
    x = 664,313,741.70

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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.