Home / 912,506,869.90-1,368,930,704.96-414,552,348.82

Finding the Fourth Proportional to 912,506,869.90, 1,368,930,704.96 and 414,552,348.82

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Solution

The fourth proportional to 912,506,869.90, 1,368,930,704.96 and 414,552,348.82 is: 621,905,936.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,506,869.90 : 1,368,930,704.96 = 414,552,348.82 : x
  2. Step 2: Convert to fraction form
    912,506,869.90/1,368,930,704.96 = 414,552,348.82/x
  3. Step 3: Cross multiply
    912,506,869.90x = 1,368,930,704.96 × 414,552,348.82
  4. Step 4: Simplify right side
    912,506,869.90x = 567,493,439,112,986,432
  5. Step 5: Solve for x
    x = 567,493,439,112,986,432/912,506,869.90
  6. Step 6: Final answer
    x = 621,905,936.09

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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.