Home / 1,015,328,318.61-1,400,637,389.31-663,110,481.45

Finding the Fourth Proportional to 1,015,328,318.61, 1,400,637,389.31 and 663,110,481.45

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Solution

The fourth proportional to 1,015,328,318.61, 1,400,637,389.31 and 663,110,481.45 is: 914,755,667.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,015,328,318.61 : 1,400,637,389.31 = 663,110,481.45 : x
  2. Step 2: Convert to fraction form
    1,015,328,318.61/1,400,637,389.31 = 663,110,481.45/x
  3. Step 3: Cross multiply
    1,015,328,318.61x = 1,400,637,389.31 × 663,110,481.45
  4. Step 4: Simplify right side
    1,015,328,318.61x = 928,777,333,562,225,152
  5. Step 5: Solve for x
    x = 928,777,333,562,225,152/1,015,328,318.61
  6. Step 6: Final answer
    x = 914,755,667.24

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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.