Home / 386,843,928.80-579,762,008.40-156,624,562.40

Finding the Fourth Proportional to 386,843,928.80, 579,762,008.40 and 156,624,562.40

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Solution

The fourth proportional to 386,843,928.80, 579,762,008.40 and 156,624,562.40 is: 234,732,831.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,843,928.80 : 579,762,008.40 = 156,624,562.40 : x
  2. Step 2: Convert to fraction form
    386,843,928.80/579,762,008.40 = 156,624,562.40/x
  3. Step 3: Cross multiply
    386,843,928.80x = 579,762,008.40 × 156,624,562.40
  4. Step 4: Simplify right side
    386,843,928.80x = 90,804,970,861,795,120
  5. Step 5: Solve for x
    x = 90,804,970,861,795,120/386,843,928.80
  6. Step 6: Final answer
    x = 234,732,831.77

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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.