Home / 21,298,435.14-31,947,652.67-5,124,386.53

Finding the Fourth Proportional to 21,298,435.14, 31,947,652.67 and 5,124,386.53

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Solution

The fourth proportional to 21,298,435.14, 31,947,652.67 and 5,124,386.53 is: 7,686,579.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,298,435.14 : 31,947,652.67 = 5,124,386.53 : x
  2. Step 2: Convert to fraction form
    21,298,435.14/31,947,652.67 = 5,124,386.53/x
  3. Step 3: Cross multiply
    21,298,435.14x = 31,947,652.67 × 5,124,386.53
  4. Step 4: Simplify right side
    21,298,435.14x = 163,712,121,021,579.16
  5. Step 5: Solve for x
    x = 163,712,121,021,579.16/21,298,435.14
  6. Step 6: Final answer
    x = 7,686,579.78

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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.