Home / 78,833,127.60-118,169,209.80-53,276,720.40

Finding the Fourth Proportional to 78,833,127.60, 118,169,209.80 and 53,276,720.40

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Solution

The fourth proportional to 78,833,127.60, 118,169,209.80 and 53,276,720.40 is: 79,860,689.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833,127.60 : 118,169,209.80 = 53,276,720.40 : x
  2. Step 2: Convert to fraction form
    78,833,127.60/118,169,209.80 = 53,276,720.40/x
  3. Step 3: Cross multiply
    78,833,127.60x = 118,169,209.80 × 53,276,720.40
  4. Step 4: Simplify right side
    78,833,127.60x = 6,295,667,950,403,540
  5. Step 5: Solve for x
    x = 6,295,667,950,403,540/78,833,127.60
  6. Step 6: Final answer
    x = 79,860,689.81

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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.