Home / 154,845,770.10-213,679,031.28-85,217,842.86

Finding the Fourth Proportional to 154,845,770.10, 213,679,031.28 and 85,217,842.86

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Solution

The fourth proportional to 154,845,770.10, 213,679,031.28 and 85,217,842.86 is: 117,596,148.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,845,770.10 : 213,679,031.28 = 85,217,842.86 : x
  2. Step 2: Convert to fraction form
    154,845,770.10/213,679,031.28 = 85,217,842.86/x
  3. Step 3: Cross multiply
    154,845,770.10x = 213,679,031.28 × 85,217,842.86
  4. Step 4: Simplify right side
    154,845,770.10x = 18,209,266,110,096,064
  5. Step 5: Solve for x
    x = 18,209,266,110,096,064/154,845,770.10
  6. Step 6: Final answer
    x = 117,596,148.08

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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.