Home / 1,441,855,416.96-1,989,799,600.57-815,417,523

Finding the Fourth Proportional to 1,441,855,416.96, 1,989,799,600.57 and 815,417,523

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Solution

The fourth proportional to 1,441,855,416.96, 1,989,799,600.57 and 815,417,523 is: 1,125,298,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,441,855,416.96 : 1,989,799,600.57 = 815,417,523 : x
  2. Step 2: Convert to fraction form
    1,441,855,416.96/1,989,799,600.57 = 815,417,523/x
  3. Step 3: Cross multiply
    1,441,855,416.96x = 1,989,799,600.57 × 815,417,523
  4. Step 4: Simplify right side
    1,441,855,416.96x = 1,622,517,461,561,140,224
  5. Step 5: Solve for x
    x = 1,622,517,461,561,140,224/1,441,855,416.96
  6. Step 6: Final answer
    x = 1,125,298,308.33

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1.5x scale

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.