Home / 78,833,129.60-118,169,212.80-53,276,722.40

Finding the Fourth Proportional to 78,833,129.60, 118,169,212.80 and 53,276,722.40

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Solution

The fourth proportional to 78,833,129.60, 118,169,212.80 and 53,276,722.40 is: 79,860,692.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833,129.60 : 118,169,212.80 = 53,276,722.40 : x
  2. Step 2: Convert to fraction form
    78,833,129.60/118,169,212.80 = 53,276,722.40/x
  3. Step 3: Cross multiply
    78,833,129.60x = 118,169,212.80 × 53,276,722.40
  4. Step 4: Simplify right side
    78,833,129.60x = 6,295,668,346,572,126
  5. Step 5: Solve for x
    x = 6,295,668,346,572,126/78,833,129.60
  6. Step 6: Final answer
    x = 79,860,692.81

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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.