Home / 649,938,879.29-896,915,653.51-371,486,381.53

Finding the Fourth Proportional to 649,938,879.29, 896,915,653.51 and 371,486,381.53

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Solution

The fourth proportional to 649,938,879.29, 896,915,653.51 and 371,486,381.53 is: 512,651,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,938,879.29 : 896,915,653.51 = 371,486,381.53 : x
  2. Step 2: Convert to fraction form
    649,938,879.29/896,915,653.51 = 371,486,381.53/x
  3. Step 3: Cross multiply
    649,938,879.29x = 896,915,653.51 × 371,486,381.53
  4. Step 4: Simplify right side
    649,938,879.29x = 333,191,950,660,045,120
  5. Step 5: Solve for x
    x = 333,191,950,660,045,120/649,938,879.29
  6. Step 6: Final answer
    x = 512,651,206.56

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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.