Home / 310,783,853.32-428,866,656.95-176,809,154.96

Finding the Fourth Proportional to 310,783,853.32, 428,866,656.95 and 176,809,154.96

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Solution

The fourth proportional to 310,783,853.32, 428,866,656.95 and 176,809,154.96 is: 243,988,065.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,783,853.32 : 428,866,656.95 = 176,809,154.96 : x
  2. Step 2: Convert to fraction form
    310,783,853.32/428,866,656.95 = 176,809,154.96/x
  3. Step 3: Cross multiply
    310,783,853.32x = 428,866,656.95 × 176,809,154.96
  4. Step 4: Simplify right side
    310,783,853.32x = 75,827,551,207,363,904
  5. Step 5: Solve for x
    x = 75,827,551,207,363,904/310,783,853.32
  6. Step 6: Final answer
    x = 243,988,065.65

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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.