Home / 103,390,976.07-142,677,089.42-56,349,534.87

Finding the Fourth Proportional to 103,390,976.07, 142,677,089.42 and 56,349,534.87

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Solution

The fourth proportional to 103,390,976.07, 142,677,089.42 and 56,349,534.87 is: 77,761,018.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,390,976.07 : 142,677,089.42 = 56,349,534.87 : x
  2. Step 2: Convert to fraction form
    103,390,976.07/142,677,089.42 = 56,349,534.87/x
  3. Step 3: Cross multiply
    103,390,976.07x = 142,677,089.42 × 56,349,534.87
  4. Step 4: Simplify right side
    103,390,976.07x = 8,039,787,625,140,650
  5. Step 5: Solve for x
    x = 8,039,787,625,140,650/103,390,976.07
  6. Step 6: Final answer
    x = 77,761,018.71

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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.