Home / 649,938,870.88-896,915,641.84-371,486,373.12

Finding the Fourth Proportional to 649,938,870.88, 896,915,641.84 and 371,486,373.12

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Solution

The fourth proportional to 649,938,870.88, 896,915,641.84 and 371,486,373.12 is: 512,651,194.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,938,870.88 : 896,915,641.84 = 371,486,373.12 : x
  2. Step 2: Convert to fraction form
    649,938,870.88/896,915,641.84 = 371,486,373.12/x
  3. Step 3: Cross multiply
    649,938,870.88x = 896,915,641.84 × 371,486,373.12
  4. Step 4: Simplify right side
    649,938,870.88x = 333,191,938,781,738,560
  5. Step 5: Solve for x
    x = 333,191,938,781,738,560/649,938,870.88
  6. Step 6: Final answer
    x = 512,651,194.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.