Home / 268,278,436.80-402,417,655.20-164,966,306.40

Finding the Fourth Proportional to 268,278,436.80, 402,417,655.20 and 164,966,306.40

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Solution

The fourth proportional to 268,278,436.80, 402,417,655.20 and 164,966,306.40 is: 247,449,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,278,436.80 : 402,417,655.20 = 164,966,306.40 : x
  2. Step 2: Convert to fraction form
    268,278,436.80/402,417,655.20 = 164,966,306.40/x
  3. Step 3: Cross multiply
    268,278,436.80x = 402,417,655.20 × 164,966,306.40
  4. Step 4: Simplify right side
    268,278,436.80x = 66,385,354,208,492,752
  5. Step 5: Solve for x
    x = 66,385,354,208,492,752/268,278,436.80
  6. Step 6: Final answer
    x = 247,449,459.60

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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.