Home / 124,138,299.90-171,284,643.98-71,924,156.04

Finding the Fourth Proportional to 124,138,299.90, 171,284,643.98 and 71,924,156.04

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Solution

The fourth proportional to 124,138,299.90, 171,284,643.98 and 71,924,156.04 is: 99,240,149.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,138,299.90 : 171,284,643.98 = 71,924,156.04 : x
  2. Step 2: Convert to fraction form
    124,138,299.90/171,284,643.98 = 71,924,156.04/x
  3. Step 3: Cross multiply
    124,138,299.90x = 171,284,643.98 × 71,924,156.04
  4. Step 4: Simplify right side
    124,138,299.90x = 12,319,503,461,830,712
  5. Step 5: Solve for x
    x = 12,319,503,461,830,712/124,138,299.90
  6. Step 6: Final answer
    x = 99,240,149.67

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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.