Home / 18,681,475.53-25,780,364.63-10,421,531.23

Finding the Fourth Proportional to 18,681,475.53, 25,780,364.63 and 10,421,531.23

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Solution

The fourth proportional to 18,681,475.53, 25,780,364.63 and 10,421,531.23 is: 14,381,673.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,475.53 : 25,780,364.63 = 10,421,531.23 : x
  2. Step 2: Convert to fraction form
    18,681,475.53/25,780,364.63 = 10,421,531.23/x
  3. Step 3: Cross multiply
    18,681,475.53x = 25,780,364.63 × 10,421,531.23
  4. Step 4: Simplify right side
    18,681,475.53x = 268,670,875,112,508.50
  5. Step 5: Solve for x
    x = 268,670,875,112,508.50/18,681,475.53
  6. Step 6: Final answer
    x = 14,381,673.16

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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.