Home / 89,630,086.40-134,445,129.60-88,779,780.80

Finding the Fourth Proportional to 89,630,086.40, 134,445,129.60 and 88,779,780.80

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Solution

The fourth proportional to 89,630,086.40, 134,445,129.60 and 88,779,780.80 is: 133,169,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,630,086.40 : 134,445,129.60 = 88,779,780.80 : x
  2. Step 2: Convert to fraction form
    89,630,086.40/134,445,129.60 = 88,779,780.80/x
  3. Step 3: Cross multiply
    89,630,086.40x = 134,445,129.60 × 88,779,780.80
  4. Step 4: Simplify right side
    89,630,086.40x = 11,936,009,135,515,590
  5. Step 5: Solve for x
    x = 11,936,009,135,515,590/89,630,086.40
  6. Step 6: Final answer
    x = 133,169,671.20

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1.5x scale

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.