Home / 709,779,335.76-984,506,556.78-690,902,551.44

Finding the Fourth Proportional to 709,779,335.76, 984,506,556.78 and 690,902,551.44

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Solution

The fourth proportional to 709,779,335.76, 984,506,556.78 and 690,902,551.44 is: 958,323,323.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,779,335.76 : 984,506,556.78 = 690,902,551.44 : x
  2. Step 2: Convert to fraction form
    709,779,335.76/984,506,556.78 = 690,902,551.44/x
  3. Step 3: Cross multiply
    709,779,335.76x = 984,506,556.78 × 690,902,551.44
  4. Step 4: Simplify right side
    709,779,335.76x = 680,198,091,988,711,296
  5. Step 5: Solve for x
    x = 680,198,091,988,711,296/709,779,335.76
  6. Step 6: Final answer
    x = 958,323,323.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.