Home / 145,575,643.90-218,363,465.85-69,048,139.90

Finding the Fourth Proportional to 145,575,643.90, 218,363,465.85 and 69,048,139.90

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Solution

The fourth proportional to 145,575,643.90, 218,363,465.85 and 69,048,139.90 is: 103,572,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,575,643.90 : 218,363,465.85 = 69,048,139.90 : x
  2. Step 2: Convert to fraction form
    145,575,643.90/218,363,465.85 = 69,048,139.90/x
  3. Step 3: Cross multiply
    145,575,643.90x = 218,363,465.85 × 69,048,139.90
  4. Step 4: Simplify right side
    145,575,643.90x = 15,077,591,139,059,674
  5. Step 5: Solve for x
    x = 15,077,591,139,059,674/145,575,643.90
  6. Step 6: Final answer
    x = 103,572,209.85

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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.