Home / 709,520,006.90-1,064,280,010.35-419,282,362.10

Finding the Fourth Proportional to 709,520,006.90, 1,064,280,010.35 and 419,282,362.10

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Solution

The fourth proportional to 709,520,006.90, 1,064,280,010.35 and 419,282,362.10 is: 628,923,543.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,520,006.90 : 1,064,280,010.35 = 419,282,362.10 : x
  2. Step 2: Convert to fraction form
    709,520,006.90/1,064,280,010.35 = 419,282,362.10/x
  3. Step 3: Cross multiply
    709,520,006.90x = 1,064,280,010.35 × 419,282,362.10
  4. Step 4: Simplify right side
    709,520,006.90x = 446,233,836,675,360,512
  5. Step 5: Solve for x
    x = 446,233,836,675,360,512/709,520,006.90
  6. Step 6: Final answer
    x = 628,923,543.15

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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.