Home / 402,408,031.70-603,612,047.55-399,857,114.90

Finding the Fourth Proportional to 402,408,031.70, 603,612,047.55 and 399,857,114.90

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Solution

The fourth proportional to 402,408,031.70, 603,612,047.55 and 399,857,114.90 is: 599,785,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408,031.70 : 603,612,047.55 = 399,857,114.90 : x
  2. Step 2: Convert to fraction form
    402,408,031.70/603,612,047.55 = 399,857,114.90/x
  3. Step 3: Cross multiply
    402,408,031.70x = 603,612,047.55 × 399,857,114.90
  4. Step 4: Simplify right side
    402,408,031.70x = 241,358,571,852,224,576
  5. Step 5: Solve for x
    x = 241,358,571,852,224,576/402,408,031.70
  6. Step 6: Final answer
    x = 599,785,672.35

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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.