Home / 86,935,207.70-130,402,811.55-77,865,281.30

Finding the Fourth Proportional to 86,935,207.70, 130,402,811.55 and 77,865,281.30

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Solution

The fourth proportional to 86,935,207.70, 130,402,811.55 and 77,865,281.30 is: 116,797,921.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,935,207.70 : 130,402,811.55 = 77,865,281.30 : x
  2. Step 2: Convert to fraction form
    86,935,207.70/130,402,811.55 = 77,865,281.30/x
  3. Step 3: Cross multiply
    86,935,207.70x = 130,402,811.55 × 77,865,281.30
  4. Step 4: Simplify right side
    86,935,207.70x = 10,153,851,603,651,638
  5. Step 5: Solve for x
    x = 10,153,851,603,651,638/86,935,207.70
  6. Step 6: Final answer
    x = 116,797,921.95

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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.