Home / 485,047,022.40-727,676,821.80-239,521,280.40

Finding the Fourth Proportional to 485,047,022.40, 727,676,821.80 and 239,521,280.40

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Solution

The fourth proportional to 485,047,022.40, 727,676,821.80 and 239,521,280.40 is: 359,334,406.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,047,022.40 : 727,676,821.80 = 239,521,280.40 : x
  2. Step 2: Convert to fraction form
    485,047,022.40/727,676,821.80 = 239,521,280.40/x
  3. Step 3: Cross multiply
    485,047,022.40x = 727,676,821.80 × 239,521,280.40
  4. Step 4: Simplify right side
    485,047,022.40x = 174,294,084,074,938,624
  5. Step 5: Solve for x
    x = 174,294,084,074,938,624/485,047,022.40
  6. Step 6: Final answer
    x = 359,334,406.82

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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.