Home / 85,153,539.60-127,730,309.40-39,719,926.80

Finding the Fourth Proportional to 85,153,539.60, 127,730,309.40 and 39,719,926.80

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Solution

The fourth proportional to 85,153,539.60, 127,730,309.40 and 39,719,926.80 is: 59,579,890.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,153,539.60 : 127,730,309.40 = 39,719,926.80 : x
  2. Step 2: Convert to fraction form
    85,153,539.60/127,730,309.40 = 39,719,926.80/x
  3. Step 3: Cross multiply
    85,153,539.60x = 127,730,309.40 × 39,719,926.80
  4. Step 4: Simplify right side
    85,153,539.60x = 5,073,438,539,509,352
  5. Step 5: Solve for x
    x = 5,073,438,539,509,352/85,153,539.60
  6. Step 6: Final answer
    x = 59,579,890.20

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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.