Home / 310,674,492.18-428,739,888.65-169,554,763.89

Finding the Fourth Proportional to 310,674,492.18, 428,739,888.65 and 169,554,763.89

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Solution

The fourth proportional to 310,674,492.18, 428,739,888.65 and 169,554,763.89 is: 233,990,534.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,674,492.18 : 428,739,888.65 = 169,554,763.89 : x
  2. Step 2: Convert to fraction form
    310,674,492.18/428,739,888.65 = 169,554,763.89/x
  3. Step 3: Cross multiply
    310,674,492.18x = 428,739,888.65 × 169,554,763.89
  4. Step 4: Simplify right side
    310,674,492.18x = 72,694,890,589,427,856
  5. Step 5: Solve for x
    x = 72,694,890,589,427,856/310,674,492.18
  6. Step 6: Final answer
    x = 233,990,534.85

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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.