Home / 72,578,559.30-108,867,838.95-18,725,871.30

Finding the Fourth Proportional to 72,578,559.30, 108,867,838.95 and 18,725,871.30

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Solution

The fourth proportional to 72,578,559.30, 108,867,838.95 and 18,725,871.30 is: 28,088,806.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,578,559.30 : 108,867,838.95 = 18,725,871.30 : x
  2. Step 2: Convert to fraction form
    72,578,559.30/108,867,838.95 = 18,725,871.30/x
  3. Step 3: Cross multiply
    72,578,559.30x = 108,867,838.95 × 18,725,871.30
  4. Step 4: Simplify right side
    72,578,559.30x = 2,038,645,140,886,827.25
  5. Step 5: Solve for x
    x = 2,038,645,140,886,827.25/72,578,559.30
  6. Step 6: Final answer
    x = 28,088,806.95

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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.