Home / 154,441,172.61-213,141,962.10-87,472,043.22

Finding the Fourth Proportional to 154,441,172.61, 213,141,962.10 and 87,472,043.22

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Solution

The fourth proportional to 154,441,172.61, 213,141,962.10 and 87,472,043.22 is: 120,718,864.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,441,172.61 : 213,141,962.10 = 87,472,043.22 : x
  2. Step 2: Convert to fraction form
    154,441,172.61/213,141,962.10 = 87,472,043.22/x
  3. Step 3: Cross multiply
    154,441,172.61x = 213,141,962.10 × 87,472,043.22
  4. Step 4: Simplify right side
    154,441,172.61x = 18,643,962,920,806,800
  5. Step 5: Solve for x
    x = 18,643,962,920,806,800/154,441,172.61
  6. Step 6: Final answer
    x = 120,718,864.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.