Home / 13,209,139.59-19,819,971.08-6,381,886.11

Finding the Fourth Proportional to 13,209,139.59, 19,819,971.08 and 6,381,886.11

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Solution

The fourth proportional to 13,209,139.59, 19,819,971.08 and 6,381,886.11 is: 9,575,854.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209,139.59 : 19,819,971.08 = 6,381,886.11 : x
  2. Step 2: Convert to fraction form
    13,209,139.59/19,819,971.08 = 6,381,886.11/x
  3. Step 3: Cross multiply
    13,209,139.59x = 19,819,971.08 × 6,381,886.11
  4. Step 4: Simplify right side
    13,209,139.59x = 126,488,798,136,053.69
  5. Step 5: Solve for x
    x = 126,488,798,136,053.69/13,209,139.59
  6. Step 6: Final answer
    x = 9,575,854.45

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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.