Home / 156,634,122.41-216,142,436.40-90,558,879.59

Finding the Fourth Proportional to 156,634,122.41, 216,142,436.40 and 90,558,879.59

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Solution

The fourth proportional to 156,634,122.41, 216,142,436.40 and 90,558,879.59 is: 124,963,938.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,634,122.41 : 216,142,436.40 = 90,558,879.59 : x
  2. Step 2: Convert to fraction form
    156,634,122.41/216,142,436.40 = 90,558,879.59/x
  3. Step 3: Cross multiply
    156,634,122.41x = 216,142,436.40 × 90,558,879.59
  4. Step 4: Simplify right side
    156,634,122.41x = 19,573,616,872,437,596
  5. Step 5: Solve for x
    x = 19,573,616,872,437,596/156,634,122.41
  6. Step 6: Final answer
    x = 124,963,938.71

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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.