Home / 257,283,252.86-385,707,901.55-111,607,073.51

Finding the Fourth Proportional to 257,283,252.86, 385,707,901.55 and 111,607,073.51

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Solution

The fourth proportional to 257,283,252.86, 385,707,901.55 and 111,607,073.51 is: 167,316,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,283,252.86 : 385,707,901.55 = 111,607,073.51 : x
  2. Step 2: Convert to fraction form
    257,283,252.86/385,707,901.55 = 111,607,073.51/x
  3. Step 3: Cross multiply
    257,283,252.86x = 385,707,901.55 × 111,607,073.51
  4. Step 4: Simplify right side
    257,283,252.86x = 43,047,730,119,192,120
  5. Step 5: Solve for x
    x = 43,047,730,119,192,120/257,283,252.86
  6. Step 6: Final answer
    x = 167,316,487.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.