Home / 103,720,352.10-155,588,401.35-30,931,451.70

Finding the Fourth Proportional to 103,720,352.10, 155,588,401.35 and 30,931,451.70

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Solution

The fourth proportional to 103,720,352.10, 155,588,401.35 and 30,931,451.70 is: 46,399,525.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,720,352.10 : 155,588,401.35 = 30,931,451.70 : x
  2. Step 2: Convert to fraction form
    103,720,352.10/155,588,401.35 = 30,931,451.70/x
  3. Step 3: Cross multiply
    103,720,352.10x = 155,588,401.35 × 30,931,451.70
  4. Step 4: Simplify right side
    103,720,352.10x = 4,812,575,121,437,739
  5. Step 5: Solve for x
    x = 4,812,575,121,437,739/103,720,352.10
  6. Step 6: Final answer
    x = 46,399,525.49

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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.