Home / 78,833,139.60-118,169,227.80-53,276,732.40

Finding the Fourth Proportional to 78,833,139.60, 118,169,227.80 and 53,276,732.40

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Solution

The fourth proportional to 78,833,139.60, 118,169,227.80 and 53,276,732.40 is: 79,860,707.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833,139.60 : 118,169,227.80 = 53,276,732.40 : x
  2. Step 2: Convert to fraction form
    78,833,139.60/118,169,227.80 = 53,276,732.40/x
  3. Step 3: Cross multiply
    78,833,139.60x = 118,169,227.80 × 53,276,732.40
  4. Step 4: Simplify right side
    78,833,139.60x = 6,295,670,327,415,240
  5. Step 5: Solve for x
    x = 6,295,670,327,415,240/78,833,139.60
  6. Step 6: Final answer
    x = 79,860,707.81

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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.