Home / 154,234,880.80-212,788,282-101,340,079.52

Finding the Fourth Proportional to 154,234,880.80, 212,788,282 and 101,340,079.52

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Solution

The fourth proportional to 154,234,880.80, 212,788,282 and 101,340,079.52 is: 139,812,611.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,234,880.80 : 212,788,282 = 101,340,079.52 : x
  2. Step 2: Convert to fraction form
    154,234,880.80/212,788,282 = 101,340,079.52/x
  3. Step 3: Cross multiply
    154,234,880.80x = 212,788,282 × 101,340,079.52
  4. Step 4: Simplify right side
    154,234,880.80x = 21,563,981,418,804,184
  5. Step 5: Solve for x
    x = 21,563,981,418,804,184/154,234,880.80
  6. Step 6: Final answer
    x = 139,812,611.17

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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.