Home / 649,938,869.60-896,915,640.06-371,486,371.91

Finding the Fourth Proportional to 649,938,869.60, 896,915,640.06 and 371,486,371.91

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Solution

The fourth proportional to 649,938,869.60, 896,915,640.06 and 371,486,371.91 is: 512,651,193.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,938,869.60 : 896,915,640.06 = 371,486,371.91 : x
  2. Step 2: Convert to fraction form
    649,938,869.60/896,915,640.06 = 371,486,371.91/x
  3. Step 3: Cross multiply
    649,938,869.60x = 896,915,640.06 × 371,486,371.91
  4. Step 4: Simplify right side
    649,938,869.60x = 333,191,937,030,740,224
  5. Step 5: Solve for x
    x = 333,191,937,030,740,224/649,938,869.60
  6. Step 6: Final answer
    x = 512,651,193.24

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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.