Home / 815,318,875.10-1,125,152,991.34-462,887,674.22

Finding the Fourth Proportional to 815,318,875.10, 1,125,152,991.34 and 462,887,674.22

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Solution

The fourth proportional to 815,318,875.10, 1,125,152,991.34 and 462,887,674.22 is: 638,792,339.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,318,875.10 : 1,125,152,991.34 = 462,887,674.22 : x
  2. Step 2: Convert to fraction form
    815,318,875.10/1,125,152,991.34 = 462,887,674.22/x
  3. Step 3: Cross multiply
    815,318,875.10x = 1,125,152,991.34 × 462,887,674.22
  4. Step 4: Simplify right side
    815,318,875.10x = 520,819,451,303,048,384
  5. Step 5: Solve for x
    x = 520,819,451,303,048,384/815,318,875.10
  6. Step 6: Final answer
    x = 638,792,339.06

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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.