Home / 918,209,814.60-1,377,683,822.70-372,994,019.40

Finding the Fourth Proportional to 918,209,814.60, 1,377,683,822.70 and 372,994,019.40

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Solution

The fourth proportional to 918,209,814.60, 1,377,683,822.70 and 372,994,019.40 is: 559,640,964.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,209,814.60 : 1,377,683,822.70 = 372,994,019.40 : x
  2. Step 2: Convert to fraction form
    918,209,814.60/1,377,683,822.70 = 372,994,019.40/x
  3. Step 3: Cross multiply
    918,209,814.60x = 1,377,683,822.70 × 372,994,019.40
  4. Step 4: Simplify right side
    918,209,814.60x = 513,867,826,491,229,952
  5. Step 5: Solve for x
    x = 513,867,826,491,229,952/918,209,814.60
  6. Step 6: Final answer
    x = 559,640,964.76

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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.