Home / 130,929,971.12-196,387,829.76-40,053,559.76

Finding the Fourth Proportional to 130,929,971.12, 196,387,829.76 and 40,053,559.76

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Solution

The fourth proportional to 130,929,971.12, 196,387,829.76 and 40,053,559.76 is: 60,078,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,929,971.12 : 196,387,829.76 = 40,053,559.76 : x
  2. Step 2: Convert to fraction form
    130,929,971.12/196,387,829.76 = 40,053,559.76/x
  3. Step 3: Cross multiply
    130,929,971.12x = 196,387,829.76 × 40,053,559.76
  4. Step 4: Simplify right side
    130,929,971.12x = 7,866,031,675,428,866
  5. Step 5: Solve for x
    x = 7,866,031,675,428,866/130,929,971.12
  6. Step 6: Final answer
    x = 60,078,159.40

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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.