Home / 156,641,215.52-216,152,188.80-90,565,957.28

Finding the Fourth Proportional to 156,641,215.52, 216,152,188.80 and 90,565,957.28

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Solution

The fourth proportional to 156,641,215.52, 216,152,188.80 and 90,565,957.28 is: 124,973,684.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,641,215.52 : 216,152,188.80 = 90,565,957.28 : x
  2. Step 2: Convert to fraction form
    156,641,215.52/216,152,188.80 = 90,565,957.28/x
  3. Step 3: Cross multiply
    156,641,215.52x = 216,152,188.80 × 90,565,957.28
  4. Step 4: Simplify right side
    156,641,215.52x = 19,576,029,896,839,296
  5. Step 5: Solve for x
    x = 19,576,029,896,839,296/156,641,215.52
  6. Step 6: Final answer
    x = 124,973,684.81

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Why These Related Problems?

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