Home / 21,386,509.20-32,079,763.80-9,871,954.20

Finding the Fourth Proportional to 21,386,509.20, 32,079,763.80 and 9,871,954.20

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Solution

The fourth proportional to 21,386,509.20, 32,079,763.80 and 9,871,954.20 is: 14,807,931.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386,509.20 : 32,079,763.80 = 9,871,954.20 : x
  2. Step 2: Convert to fraction form
    21,386,509.20/32,079,763.80 = 9,871,954.20/x
  3. Step 3: Cross multiply
    21,386,509.20x = 32,079,763.80 × 9,871,954.20
  4. Step 4: Simplify right side
    21,386,509.20x = 316,689,958,980,417.94
  5. Step 5: Solve for x
    x = 316,689,958,980,417.94/21,386,509.20
  6. Step 6: Final answer
    x = 14,807,931.30

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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.