Home / 805,680,094.40-1,208,520,141.60-644,436,958.40

Finding the Fourth Proportional to 805,680,094.40, 1,208,520,141.60 and 644,436,958.40

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Solution

The fourth proportional to 805,680,094.40, 1,208,520,141.60 and 644,436,958.40 is: 966,655,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,680,094.40 : 1,208,520,141.60 = 644,436,958.40 : x
  2. Step 2: Convert to fraction form
    805,680,094.40/1,208,520,141.60 = 644,436,958.40/x
  3. Step 3: Cross multiply
    805,680,094.40x = 1,208,520,141.60 × 644,436,958.40
  4. Step 4: Simplify right side
    805,680,094.40x = 778,815,044,217,841,280
  5. Step 5: Solve for x
    x = 778,815,044,217,841,280/805,680,094.40
  6. Step 6: Final answer
    x = 966,655,437.60

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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.