Home / 21,030,510.90-31,548,718.80-6,652,079.40

Finding the Fourth Proportional to 21,030,510.90, 31,548,718.80 and 6,652,079.40

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Solution

The fourth proportional to 21,030,510.90, 31,548,718.80 and 6,652,079.40 is: 9,979,052.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,030,510.90 : 31,548,718.80 = 6,652,079.40 : x
  2. Step 2: Convert to fraction form
    21,030,510.90/31,548,718.80 = 6,652,079.40/x
  3. Step 3: Cross multiply
    21,030,510.90x = 31,548,718.80 × 6,652,079.40
  4. Step 4: Simplify right side
    21,030,510.90x = 209,864,582,425,872.75
  5. Step 5: Solve for x
    x = 209,864,582,425,872.75/21,030,510.90
  6. Step 6: Final answer
    x = 9,979,052.98

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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.