Home / 13,390,079.85-18,478,322.10-7,278,508.35

Finding the Fourth Proportional to 13,390,079.85, 18,478,322.10 and 7,278,508.35

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Solution

The fourth proportional to 13,390,079.85, 18,478,322.10 and 7,278,508.35 is: 10,044,348.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,079.85 : 18,478,322.10 = 7,278,508.35 : x
  2. Step 2: Convert to fraction form
    13,390,079.85/18,478,322.10 = 7,278,508.35/x
  3. Step 3: Cross multiply
    13,390,079.85x = 18,478,322.10 × 7,278,508.35
  4. Step 4: Simplify right side
    13,390,079.85x = 134,494,621,698,839.53
  5. Step 5: Solve for x
    x = 134,494,621,698,839.53/13,390,079.85
  6. Step 6: Final answer
    x = 10,044,348.00

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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.