Home / 52,687,730.40-78,882,296.40-47,312,959.20

Finding the Fourth Proportional to 52,687,730.40, 78,882,296.40 and 47,312,959.20

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Solution

The fourth proportional to 52,687,730.40, 78,882,296.40 and 47,312,959.20 is: 70,835,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,687,730.40 : 78,882,296.40 = 47,312,959.20 : x
  2. Step 2: Convert to fraction form
    52,687,730.40/78,882,296.40 = 47,312,959.20/x
  3. Step 3: Cross multiply
    52,687,730.40x = 78,882,296.40 × 47,312,959.20
  4. Step 4: Simplify right side
    52,687,730.40x = 3,732,154,871,175,507.50
  5. Step 5: Solve for x
    x = 3,732,154,871,175,507.50/52,687,730.40
  6. Step 6: Final answer
    x = 70,835,369.88

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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.