Home / 28,031,705.40-42,047,558.10-7,561,385.40

Finding the Fourth Proportional to 28,031,705.40, 42,047,558.10 and 7,561,385.40

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Solution

The fourth proportional to 28,031,705.40, 42,047,558.10 and 7,561,385.40 is: 11,342,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031,705.40 : 42,047,558.10 = 7,561,385.40 : x
  2. Step 2: Convert to fraction form
    28,031,705.40/42,047,558.10 = 7,561,385.40/x
  3. Step 3: Cross multiply
    28,031,705.40x = 42,047,558.10 × 7,561,385.40
  4. Step 4: Simplify right side
    28,031,705.40x = 317,937,791,922,991.75
  5. Step 5: Solve for x
    x = 317,937,791,922,991.75/28,031,705.40
  6. Step 6: Final answer
    x = 11,342,078.10

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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.