Home / 91,034,430.40-136,551,645.60-90,396,701.20

Finding the Fourth Proportional to 91,034,430.40, 136,551,645.60 and 90,396,701.20

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Solution

The fourth proportional to 91,034,430.40, 136,551,645.60 and 90,396,701.20 is: 135,595,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,034,430.40 : 136,551,645.60 = 90,396,701.20 : x
  2. Step 2: Convert to fraction form
    91,034,430.40/136,551,645.60 = 90,396,701.20/x
  3. Step 3: Cross multiply
    91,034,430.40x = 136,551,645.60 × 90,396,701.20
  4. Step 4: Simplify right side
    91,034,430.40x = 12,343,818,305,671,494
  5. Step 5: Solve for x
    x = 12,343,818,305,671,494/91,034,430.40
  6. Step 6: Final answer
    x = 135,595,051.80

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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.