Home / 155,847,503.52-215,069,806.80-86,235,818.40

Finding the Fourth Proportional to 155,847,503.52, 215,069,806.80 and 86,235,818.40

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Solution

The fourth proportional to 155,847,503.52, 215,069,806.80 and 86,235,818.40 is: 119,005,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,847,503.52 : 215,069,806.80 = 86,235,818.40 : x
  2. Step 2: Convert to fraction form
    155,847,503.52/215,069,806.80 = 86,235,818.40/x
  3. Step 3: Cross multiply
    155,847,503.52x = 215,069,806.80 × 86,235,818.40
  4. Step 4: Simplify right side
    155,847,503.52x = 18,546,720,802,527,888
  5. Step 5: Solve for x
    x = 18,546,720,802,527,888/155,847,503.52
  6. Step 6: Final answer
    x = 119,005,568.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.