Home / 162,385,408.40-243,578,112.60-127,948,031.60

Finding the Fourth Proportional to 162,385,408.40, 243,578,112.60 and 127,948,031.60

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Solution

The fourth proportional to 162,385,408.40, 243,578,112.60 and 127,948,031.60 is: 191,922,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,385,408.40 : 243,578,112.60 = 127,948,031.60 : x
  2. Step 2: Convert to fraction form
    162,385,408.40/243,578,112.60 = 127,948,031.60/x
  3. Step 3: Cross multiply
    162,385,408.40x = 243,578,112.60 × 127,948,031.60
  4. Step 4: Simplify right side
    162,385,408.40x = 31,165,340,048,013,156
  5. Step 5: Solve for x
    x = 31,165,340,048,013,156/162,385,408.40
  6. Step 6: Final answer
    x = 191,922,047.40

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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.