Home / 113,298,147.20-169,302,244.88-85,070,590.40

Finding the Fourth Proportional to 113,298,147.20, 169,302,244.88 and 85,070,590.40

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Solution

The fourth proportional to 113,298,147.20, 169,302,244.88 and 85,070,590.40 is: 127,121,601.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,298,147.20 : 169,302,244.88 = 85,070,590.40 : x
  2. Step 2: Convert to fraction form
    113,298,147.20/169,302,244.88 = 85,070,590.40/x
  3. Step 3: Cross multiply
    113,298,147.20x = 169,302,244.88 × 85,070,590.40
  4. Step 4: Simplify right side
    113,298,147.20x = 14,402,641,927,986,978
  5. Step 5: Solve for x
    x = 14,402,641,927,986,978/113,298,147.20
  6. Step 6: Final answer
    x = 127,121,601.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.