Home / 124,612,903.20-186,919,354.80-42,720,797.55

Finding the Fourth Proportional to 124,612,903.20, 186,919,354.80 and 42,720,797.55

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Solution

The fourth proportional to 124,612,903.20, 186,919,354.80 and 42,720,797.55 is: 64,081,196.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,612,903.20 : 186,919,354.80 = 42,720,797.55 : x
  2. Step 2: Convert to fraction form
    124,612,903.20/186,919,354.80 = 42,720,797.55/x
  3. Step 3: Cross multiply
    124,612,903.20x = 186,919,354.80 × 42,720,797.55
  4. Step 4: Simplify right side
    124,612,903.20x = 7,985,343,914,587,421
  5. Step 5: Solve for x
    x = 7,985,343,914,587,421/124,612,903.20
  6. Step 6: Final answer
    x = 64,081,196.33

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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.