Home / 85,248,257.60-127,788,405.60-42,124,116.80

Finding the Fourth Proportional to 85,248,257.60, 127,788,405.60 and 42,124,116.80

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Solution

The fourth proportional to 85,248,257.60, 127,788,405.60 and 42,124,116.80 is: 63,144,677.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248,257.60 : 127,788,405.60 = 42,124,116.80 : x
  2. Step 2: Convert to fraction form
    85,248,257.60/127,788,405.60 = 42,124,116.80/x
  3. Step 3: Cross multiply
    85,248,257.60x = 127,788,405.60 × 42,124,116.80
  4. Step 4: Simplify right side
    85,248,257.60x = 5,382,973,723,180,173
  5. Step 5: Solve for x
    x = 5,382,973,723,180,173/85,248,257.60
  6. Step 6: Final answer
    x = 63,144,677.38

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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.