Home / 709,227,491,316.45-978,734,881,861.65-384,067,343,899.90

Finding the Fourth Proportional to 709,227,491,316.45, 978,734,881,861.65 and 384,067,343,899.90

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Solution

The fourth proportional to 709,227,491,316.45, 978,734,881,861.65 and 384,067,343,899.90 is: 530,013,445,701.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,227,491,316.45 : 978,734,881,861.65 = 384,067,343,899.90 : x
  2. Step 2: Convert to fraction form
    709,227,491,316.45/978,734,881,861.65 = 384,067,343,899.90/x
  3. Step 3: Cross multiply
    709,227,491,316.45x = 978,734,881,861.65 × 384,067,343,899.90
  4. Step 4: Simplify right side
    709,227,491,316.45x = 375,900,106,458,786,357,575,680
  5. Step 5: Solve for x
    x = 375,900,106,458,786,357,575,680/709,227,491,316.45
  6. Step 6: Final answer
    x = 530,013,445,701.39

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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.