Home / 1,427,970,671.19-2,141,898,417.59-728,447,461.77

Finding the Fourth Proportional to 1,427,970,671.19, 2,141,898,417.59 and 728,447,461.77

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Solution

The fourth proportional to 1,427,970,671.19, 2,141,898,417.59 and 728,447,461.77 is: 1,092,641,814.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,970,671.19 : 2,141,898,417.59 = 728,447,461.77 : x
  2. Step 2: Convert to fraction form
    1,427,970,671.19/2,141,898,417.59 = 728,447,461.77/x
  3. Step 3: Cross multiply
    1,427,970,671.19x = 2,141,898,417.59 × 728,447,461.77
  4. Step 4: Simplify right side
    1,427,970,671.19x = 1,560,260,465,658,972,672
  5. Step 5: Solve for x
    x = 1,560,260,465,658,972,672/1,427,970,671.19
  6. Step 6: Final answer
    x = 1,092,641,814.81

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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.