Home / 90,717,271.43-136,038,072.05-28,452,543.89

Finding the Fourth Proportional to 90,717,271.43, 136,038,072.05 and 28,452,543.89

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Solution

The fourth proportional to 90,717,271.43, 136,038,072.05 and 28,452,543.89 is: 42,666,949.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,717,271.43 : 136,038,072.05 = 28,452,543.89 : x
  2. Step 2: Convert to fraction form
    90,717,271.43/136,038,072.05 = 28,452,543.89/x
  3. Step 3: Cross multiply
    90,717,271.43x = 136,038,072.05 × 28,452,543.89
  4. Step 4: Simplify right side
    90,717,271.43x = 3,870,629,215,571,344.50
  5. Step 5: Solve for x
    x = 3,870,629,215,571,344.50/90,717,271.43
  6. Step 6: Final answer
    x = 42,666,949.24

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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.