Home / 71,105,070.74-106,657,606.36-19,987,089.55

Finding the Fourth Proportional to 71,105,070.74, 106,657,606.36 and 19,987,089.55

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Solution

The fourth proportional to 71,105,070.74, 106,657,606.36 and 19,987,089.55 is: 29,980,634.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,105,070.74 : 106,657,606.36 = 19,987,089.55 : x
  2. Step 2: Convert to fraction form
    71,105,070.74/106,657,606.36 = 19,987,089.55/x
  3. Step 3: Cross multiply
    71,105,070.74x = 106,657,606.36 × 19,987,089.55
  4. Step 4: Simplify right side
    71,105,070.74x = 2,131,775,129,464,292.50
  5. Step 5: Solve for x
    x = 2,131,775,129,464,292.50/71,105,070.74
  6. Step 6: Final answer
    x = 29,980,634.40

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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.