Home / 649,938,892.88-896,915,672.16-371,486,395.20

Finding the Fourth Proportional to 649,938,892.88, 896,915,672.16 and 371,486,395.20

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Solution

The fourth proportional to 649,938,892.88, 896,915,672.16 and 371,486,395.20 is: 512,651,225.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,938,892.88 : 896,915,672.16 = 371,486,395.20 : x
  2. Step 2: Convert to fraction form
    649,938,892.88/896,915,672.16 = 371,486,395.20/x
  3. Step 3: Cross multiply
    649,938,892.88x = 896,915,672.16 × 371,486,395.20
  4. Step 4: Simplify right side
    649,938,892.88x = 333,191,969,849,103,360
  5. Step 5: Solve for x
    x = 333,191,969,849,103,360/649,938,892.88
  6. Step 6: Final answer
    x = 512,651,225.37

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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.