Home / 19,428,032.40-29,145,547.80-8,069,629.20

Finding the Fourth Proportional to 19,428,032.40, 29,145,547.80 and 8,069,629.20

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Solution

The fourth proportional to 19,428,032.40, 29,145,547.80 and 8,069,629.20 is: 12,105,897.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428,032.40 : 29,145,547.80 = 8,069,629.20 : x
  2. Step 2: Convert to fraction form
    19,428,032.40/29,145,547.80 = 8,069,629.20/x
  3. Step 3: Cross multiply
    19,428,032.40x = 29,145,547.80 × 8,069,629.20
  4. Step 4: Simplify right side
    19,428,032.40x = 235,193,763,576,875.78
  5. Step 5: Solve for x
    x = 235,193,763,576,875.78/19,428,032.40
  6. Step 6: Final answer
    x = 12,105,897.23

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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.