Home / 28,218,038.76-42,319,370.23-7,742,904.12

Finding the Fourth Proportional to 28,218,038.76, 42,319,370.23 and 7,742,904.12

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Solution

The fourth proportional to 28,218,038.76, 42,319,370.23 and 7,742,904.12 is: 11,612,246.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218,038.76 : 42,319,370.23 = 7,742,904.12 : x
  2. Step 2: Convert to fraction form
    28,218,038.76/42,319,370.23 = 7,742,904.12/x
  3. Step 3: Cross multiply
    28,218,038.76x = 42,319,370.23 × 7,742,904.12
  4. Step 4: Simplify right side
    28,218,038.76x = 327,674,826,109,672.31
  5. Step 5: Solve for x
    x = 327,674,826,109,672.31/28,218,038.76
  6. Step 6: Final answer
    x = 11,612,246.65

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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.