Home / 341,539,679.60-512,309,519.40-86,238,047.60

Finding the Fourth Proportional to 341,539,679.60, 512,309,519.40 and 86,238,047.60

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Solution

The fourth proportional to 341,539,679.60, 512,309,519.40 and 86,238,047.60 is: 129,357,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,539,679.60 : 512,309,519.40 = 86,238,047.60 : x
  2. Step 2: Convert to fraction form
    341,539,679.60/512,309,519.40 = 86,238,047.60/x
  3. Step 3: Cross multiply
    341,539,679.60x = 512,309,519.40 × 86,238,047.60
  4. Step 4: Simplify right side
    341,539,679.60x = 44,180,572,719,950,320
  5. Step 5: Solve for x
    x = 44,180,572,719,950,320/341,539,679.60
  6. Step 6: Final answer
    x = 129,357,071.40

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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.