Home / 13,247,587.34-18,278,988-7,739,897.60

Finding the Fourth Proportional to 13,247,587.34, 18,278,988 and 7,739,897.60

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Solution

The fourth proportional to 13,247,587.34, 18,278,988 and 7,739,897.60 is: 10,679,491.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247,587.34 : 18,278,988 = 7,739,897.60 : x
  2. Step 2: Convert to fraction form
    13,247,587.34/18,278,988 = 7,739,897.60/x
  3. Step 3: Cross multiply
    13,247,587.34x = 18,278,988 × 7,739,897.60
  4. Step 4: Simplify right side
    13,247,587.34x = 141,477,495,351,628.78
  5. Step 5: Solve for x
    x = 141,477,495,351,628.78/13,247,587.34
  6. Step 6: Final answer
    x = 10,679,491.42

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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.