Home / 18,681,480.02-25,780,370.85-10,421,535.74

Finding the Fourth Proportional to 18,681,480.02, 25,780,370.85 and 10,421,535.74

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Solution

The fourth proportional to 18,681,480.02, 25,780,370.85 and 10,421,535.74 is: 14,381,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,480.02 : 25,780,370.85 = 10,421,535.74 : x
  2. Step 2: Convert to fraction form
    18,681,480.02/25,780,370.85 = 10,421,535.74/x
  3. Step 3: Cross multiply
    18,681,480.02x = 25,780,370.85 × 10,421,535.74
  4. Step 4: Simplify right side
    18,681,480.02x = 268,671,056,074,827.31
  5. Step 5: Solve for x
    x = 268,671,056,074,827.31/18,681,480.02
  6. Step 6: Final answer
    x = 14,381,679.38

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1.5x scale

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.