Home / 158,754,347.68-219,078,212.88-89,140,277.92

Finding the Fourth Proportional to 158,754,347.68, 219,078,212.88 and 89,140,277.92

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Solution

The fourth proportional to 158,754,347.68, 219,078,212.88 and 89,140,277.92 is: 123,012,018.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,754,347.68 : 219,078,212.88 = 89,140,277.92 : x
  2. Step 2: Convert to fraction form
    158,754,347.68/219,078,212.88 = 89,140,277.92/x
  3. Step 3: Cross multiply
    158,754,347.68x = 219,078,212.88 × 89,140,277.92
  4. Step 4: Simplify right side
    158,754,347.68x = 19,528,692,782,340,124
  5. Step 5: Solve for x
    x = 19,528,692,782,340,124/158,754,347.68
  6. Step 6: Final answer
    x = 123,012,018.68

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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.