Home / 388,761,901.20-583,149,763.80-116,136,032.40

Finding the Fourth Proportional to 388,761,901.20, 583,149,763.80 and 116,136,032.40

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Solution

The fourth proportional to 388,761,901.20, 583,149,763.80 and 116,136,032.40 is: 174,206,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,761,901.20 : 583,149,763.80 = 116,136,032.40 : x
  2. Step 2: Convert to fraction form
    388,761,901.20/583,149,763.80 = 116,136,032.40/x
  3. Step 3: Cross multiply
    388,761,901.20x = 583,149,763.80 × 116,136,032.40
  4. Step 4: Simplify right side
    388,761,901.20x = 67,724,699,862,729,144
  5. Step 5: Solve for x
    x = 67,724,699,862,729,144/388,761,901.20
  6. Step 6: Final answer
    x = 174,206,113.44

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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.