Home / 649,938,871.85-896,915,643.17-371,486,374.16

Finding the Fourth Proportional to 649,938,871.85, 896,915,643.17 and 371,486,374.16

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Solution

The fourth proportional to 649,938,871.85, 896,915,643.17 and 371,486,374.16 is: 512,651,196.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,938,871.85 : 896,915,643.17 = 371,486,374.16 : x
  2. Step 2: Convert to fraction form
    649,938,871.85/896,915,643.17 = 371,486,374.16/x
  3. Step 3: Cross multiply
    649,938,871.85x = 896,915,643.17 × 371,486,374.16
  4. Step 4: Simplify right side
    649,938,871.85x = 333,191,940,202,265,600
  5. Step 5: Solve for x
    x = 333,191,940,202,265,600/649,938,871.85
  6. Step 6: Final answer
    x = 512,651,196.34

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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.