Home / 877,521,399.50-1,210,979,706.28-486,380,823.50

Finding the Fourth Proportional to 877,521,399.50, 1,210,979,706.28 and 486,380,823.50

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Solution

The fourth proportional to 877,521,399.50, 1,210,979,706.28 and 486,380,823.50 is: 671,205,633.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,521,399.50 : 1,210,979,706.28 = 486,380,823.50 : x
  2. Step 2: Convert to fraction form
    877,521,399.50/1,210,979,706.28 = 486,380,823.50/x
  3. Step 3: Cross multiply
    877,521,399.50x = 1,210,979,706.28 × 486,380,823.50
  4. Step 4: Simplify right side
    877,521,399.50x = 588,997,306,782,254,464
  5. Step 5: Solve for x
    x = 588,997,306,782,254,464/877,521,399.50
  6. Step 6: Final answer
    x = 671,205,633.41

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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.