Home / 120,125,417.40-180,188,126.10-43,460,278.20

Finding the Fourth Proportional to 120,125,417.40, 180,188,126.10 and 43,460,278.20

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Solution

The fourth proportional to 120,125,417.40, 180,188,126.10 and 43,460,278.20 is: 65,190,417.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,125,417.40 : 180,188,126.10 = 43,460,278.20 : x
  2. Step 2: Convert to fraction form
    120,125,417.40/180,188,126.10 = 43,460,278.20/x
  3. Step 3: Cross multiply
    120,125,417.40x = 180,188,126.10 × 43,460,278.20
  4. Step 4: Simplify right side
    120,125,417.40x = 7,831,026,088,642,681
  5. Step 5: Solve for x
    x = 7,831,026,088,642,681/120,125,417.40
  6. Step 6: Final answer
    x = 65,190,417.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.