Home / 103,303,642.80-142,565,472-56,893,884.96

Finding the Fourth Proportional to 103,303,642.80, 142,565,472 and 56,893,884.96

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Solution

The fourth proportional to 103,303,642.80, 142,565,472 and 56,893,884.96 is: 78,517,110.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,303,642.80 : 142,565,472 = 56,893,884.96 : x
  2. Step 2: Convert to fraction form
    103,303,642.80/142,565,472 = 56,893,884.96/x
  3. Step 3: Cross multiply
    103,303,642.80x = 142,565,472 × 56,893,884.96
  4. Step 4: Simplify right side
    103,303,642.80x = 8,111,103,563,236,101
  5. Step 5: Solve for x
    x = 8,111,103,563,236,101/103,303,642.80
  6. Step 6: Final answer
    x = 78,517,110.76

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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.