Home / 280,264,278.20-386,757,210.65-154,813,774.14

Finding the Fourth Proportional to 280,264,278.20, 386,757,210.65 and 154,813,774.14

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Solution

The fourth proportional to 280,264,278.20, 386,757,210.65 and 154,813,774.14 is: 213,638,869.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,264,278.20 : 386,757,210.65 = 154,813,774.14 : x
  2. Step 2: Convert to fraction form
    280,264,278.20/386,757,210.65 = 154,813,774.14/x
  3. Step 3: Cross multiply
    280,264,278.20x = 386,757,210.65 × 154,813,774.14
  4. Step 4: Simplify right side
    280,264,278.20x = 59,875,343,455,811,424
  5. Step 5: Solve for x
    x = 59,875,343,455,811,424/280,264,278.20
  6. Step 6: Final answer
    x = 213,638,869.15

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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.