Home / 51,130,381.20-76,739,117.40-20,859,968.40

Finding the Fourth Proportional to 51,130,381.20, 76,739,117.40 and 20,859,968.40

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Solution

The fourth proportional to 51,130,381.20, 76,739,117.40 and 20,859,968.40 is: 31,307,718.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,130,381.20 : 76,739,117.40 = 20,859,968.40 : x
  2. Step 2: Convert to fraction form
    51,130,381.20/76,739,117.40 = 20,859,968.40/x
  3. Step 3: Cross multiply
    51,130,381.20x = 76,739,117.40 × 20,859,968.40
  4. Step 4: Simplify right side
    51,130,381.20x = 1,600,775,564,007,890.25
  5. Step 5: Solve for x
    x = 1,600,775,564,007,890.25/51,130,381.20
  6. Step 6: Final answer
    x = 31,307,718.16

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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.