Home / 649,938,854.64-896,915,619.39-371,486,356.89

Finding the Fourth Proportional to 649,938,854.64, 896,915,619.39 and 371,486,356.89

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Solution

The fourth proportional to 649,938,854.64, 896,915,619.39 and 371,486,356.89 is: 512,651,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,938,854.64 : 896,915,619.39 = 371,486,356.89 : x
  2. Step 2: Convert to fraction form
    649,938,854.64/896,915,619.39 = 371,486,356.89/x
  3. Step 3: Cross multiply
    649,938,854.64x = 896,915,619.39 × 371,486,356.89
  4. Step 4: Simplify right side
    649,938,854.64x = 333,191,915,884,928,896
  5. Step 5: Solve for x
    x = 333,191,915,884,928,896/649,938,854.64
  6. Step 6: Final answer
    x = 512,651,172.50

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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.