Home / 13,390,077.60-18,478,319.00-7,278,506.10

Finding the Fourth Proportional to 13,390,077.60, 18,478,319.00 and 7,278,506.10

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Solution

The fourth proportional to 13,390,077.60, 18,478,319.00 and 7,278,506.10 is: 10,044,344.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,077.60 : 18,478,319.00 = 7,278,506.10 : x
  2. Step 2: Convert to fraction form
    13,390,077.60/18,478,319.00 = 7,278,506.10/x
  3. Step 3: Cross multiply
    13,390,077.60x = 18,478,319.00 × 7,278,506.10
  4. Step 4: Simplify right side
    13,390,077.60x = 134,494,557,522,853.38
  5. Step 5: Solve for x
    x = 134,494,557,522,853.38/13,390,077.60
  6. Step 6: Final answer
    x = 10,044,344.89

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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.