Home / 21,574,421.40-32,361,632.10-13,108,603.80

Finding the Fourth Proportional to 21,574,421.40, 32,361,632.10 and 13,108,603.80

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Solution

The fourth proportional to 21,574,421.40, 32,361,632.10 and 13,108,603.80 is: 19,662,905.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,574,421.40 : 32,361,632.10 = 13,108,603.80 : x
  2. Step 2: Convert to fraction form
    21,574,421.40/32,361,632.10 = 13,108,603.80/x
  3. Step 3: Cross multiply
    21,574,421.40x = 32,361,632.10 × 13,108,603.80
  4. Step 4: Simplify right side
    21,574,421.40x = 424,215,813,520,262
  5. Step 5: Solve for x
    x = 424,215,813,520,262/21,574,421.40
  6. Step 6: Final answer
    x = 19,662,905.70

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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.