Home / 105,644,403.68-158,330,216.16-47,309,370.71

Finding the Fourth Proportional to 105,644,403.68, 158,330,216.16 and 47,309,370.71

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Solution

The fourth proportional to 105,644,403.68, 158,330,216.16 and 47,309,370.71 is: 70,902,978.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,644,403.68 : 158,330,216.16 = 47,309,370.71 : x
  2. Step 2: Convert to fraction form
    105,644,403.68/158,330,216.16 = 47,309,370.71/x
  3. Step 3: Cross multiply
    105,644,403.68x = 158,330,216.16 × 47,309,370.71
  4. Step 4: Simplify right side
    105,644,403.68x = 7,490,502,890,116,221
  5. Step 5: Solve for x
    x = 7,490,502,890,116,221/105,644,403.68
  6. Step 6: Final answer
    x = 70,902,978.57

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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.