Home / 649,938,878.40-896,915,652.18-371,486,380.62

Finding the Fourth Proportional to 649,938,878.40, 896,915,652.18 and 371,486,380.62

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Solution

The fourth proportional to 649,938,878.40, 896,915,652.18 and 371,486,380.62 is: 512,651,205.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,938,878.40 : 896,915,652.18 = 371,486,380.62 : x
  2. Step 2: Convert to fraction form
    649,938,878.40/896,915,652.18 = 371,486,380.62/x
  3. Step 3: Cross multiply
    649,938,878.40x = 896,915,652.18 × 371,486,380.62
  4. Step 4: Simplify right side
    649,938,878.40x = 333,191,949,349,774,976
  5. Step 5: Solve for x
    x = 333,191,949,349,774,976/649,938,878.40
  6. Step 6: Final answer
    x = 512,651,205.25

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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.