Home / 1,288,916,487.40-1,933,374,731.10-1,159,921,978.60

Finding the Fourth Proportional to 1,288,916,487.40, 1,933,374,731.10 and 1,159,921,978.60

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Solution

The fourth proportional to 1,288,916,487.40, 1,933,374,731.10 and 1,159,921,978.60 is: 1,739,882,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,916,487.40 : 1,933,374,731.10 = 1,159,921,978.60 : x
  2. Step 2: Convert to fraction form
    1,288,916,487.40/1,933,374,731.10 = 1,159,921,978.60/x
  3. Step 3: Cross multiply
    1,288,916,487.40x = 1,933,374,731.10 × 1,159,921,978.60
  4. Step 4: Simplify right side
    1,288,916,487.40x = 2,242,563,843,472,754,688
  5. Step 5: Solve for x
    x = 2,242,563,843,472,754,688/1,288,916,487.40
  6. Step 6: Final answer
    x = 1,739,882,967.90

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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.