Home / 402,902,031.80-604,353,047.70-280,458,025.40

Finding the Fourth Proportional to 402,902,031.80, 604,353,047.70 and 280,458,025.40

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Solution

The fourth proportional to 402,902,031.80, 604,353,047.70 and 280,458,025.40 is: 420,687,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,902,031.80 : 604,353,047.70 = 280,458,025.40 : x
  2. Step 2: Convert to fraction form
    402,902,031.80/604,353,047.70 = 280,458,025.40/x
  3. Step 3: Cross multiply
    402,902,031.80x = 604,353,047.70 × 280,458,025.40
  4. Step 4: Simplify right side
    402,902,031.80x = 169,495,662,402,414,016
  5. Step 5: Solve for x
    x = 169,495,662,402,414,016/402,902,031.80
  6. Step 6: Final answer
    x = 420,687,038.10

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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.