Home / 1,012,994,610.40-1,518,438,448.64-391,636,614.43

Finding the Fourth Proportional to 1,012,994,610.40, 1,518,438,448.64 and 391,636,614.43

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Solution

The fourth proportional to 1,012,994,610.40, 1,518,438,448.64 and 391,636,614.43 is: 587,047,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,994,610.40 : 1,518,438,448.64 = 391,636,614.43 : x
  2. Step 2: Convert to fraction form
    1,012,994,610.40/1,518,438,448.64 = 391,636,614.43/x
  3. Step 3: Cross multiply
    1,012,994,610.40x = 1,518,438,448.64 × 391,636,614.43
  4. Step 4: Simplify right side
    1,012,994,610.40x = 594,676,093,246,355,840
  5. Step 5: Solve for x
    x = 594,676,093,246,355,840/1,012,994,610.40
  6. Step 6: Final answer
    x = 587,047,637.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.