Home / 86,977,308.30-130,353,988.05-66,681,948.30

Finding the Fourth Proportional to 86,977,308.30, 130,353,988.05 and 66,681,948.30

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Solution

The fourth proportional to 86,977,308.30, 130,353,988.05 and 66,681,948.30 is: 99,937,076.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,977,308.30 : 130,353,988.05 = 66,681,948.30 : x
  2. Step 2: Convert to fraction form
    86,977,308.30/130,353,988.05 = 66,681,948.30/x
  3. Step 3: Cross multiply
    86,977,308.30x = 130,353,988.05 × 66,681,948.30
  4. Step 4: Simplify right side
    86,977,308.30x = 8,692,257,891,848,917
  5. Step 5: Solve for x
    x = 8,692,257,891,848,917/86,977,308.30
  6. Step 6: Final answer
    x = 99,937,076.25

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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.