Home / 716,600,302.31-988,399,020.08-478,325,352.05

Finding the Fourth Proportional to 716,600,302.31, 988,399,020.08 and 478,325,352.05

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Solution

The fourth proportional to 716,600,302.31, 988,399,020.08 and 478,325,352.05 is: 659,748,967.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,600,302.31 : 988,399,020.08 = 478,325,352.05 : x
  2. Step 2: Convert to fraction form
    716,600,302.31/988,399,020.08 = 478,325,352.05/x
  3. Step 3: Cross multiply
    716,600,302.31x = 988,399,020.08 × 478,325,352.05
  4. Step 4: Simplify right side
    716,600,302.31x = 472,776,309,238,307,456
  5. Step 5: Solve for x
    x = 472,776,309,238,307,456/716,600,302.31
  6. Step 6: Final answer
    x = 659,748,967.06

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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.