Home / 649,938,867.86-896,915,637.66-371,486,370.16

Finding the Fourth Proportional to 649,938,867.86, 896,915,637.66 and 371,486,370.16

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Solution

The fourth proportional to 649,938,867.86, 896,915,637.66 and 371,486,370.16 is: 512,651,190.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,938,867.86 : 896,915,637.66 = 371,486,370.16 : x
  2. Step 2: Convert to fraction form
    649,938,867.86/896,915,637.66 = 371,486,370.16/x
  3. Step 3: Cross multiply
    649,938,867.86x = 896,915,637.66 × 371,486,370.16
  4. Step 4: Simplify right side
    649,938,867.86x = 333,191,934,574,055,232
  5. Step 5: Solve for x
    x = 333,191,934,574,055,232/649,938,867.86
  6. Step 6: Final answer
    x = 512,651,190.83

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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.