Home / 30,575,785.80-45,863,678.70-28,237,445.40

Finding the Fourth Proportional to 30,575,785.80, 45,863,678.70 and 28,237,445.40

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Solution

The fourth proportional to 30,575,785.80, 45,863,678.70 and 28,237,445.40 is: 42,356,168.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,575,785.80 : 45,863,678.70 = 28,237,445.40 : x
  2. Step 2: Convert to fraction form
    30,575,785.80/45,863,678.70 = 28,237,445.40/x
  3. Step 3: Cross multiply
    30,575,785.80x = 45,863,678.70 × 28,237,445.40
  4. Step 4: Simplify right side
    30,575,785.80x = 1,295,073,123,134,393
  5. Step 5: Solve for x
    x = 1,295,073,123,134,393/30,575,785.80
  6. Step 6: Final answer
    x = 42,356,168.10

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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.