Home / 28,218,037.76-42,319,368.74-7,742,903.12

Finding the Fourth Proportional to 28,218,037.76, 42,319,368.74 and 7,742,903.12

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Solution

The fourth proportional to 28,218,037.76, 42,319,368.74 and 7,742,903.12 is: 11,612,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,218,037.76 : 42,319,368.74 = 7,742,903.12 : x
  2. Step 2: Convert to fraction form
    28,218,037.76/42,319,368.74 = 7,742,903.12/x
  3. Step 3: Cross multiply
    28,218,037.76x = 42,319,368.74 × 7,742,903.12
  4. Step 4: Simplify right side
    28,218,037.76x = 327,674,772,003,065.12
  5. Step 5: Solve for x
    x = 327,674,772,003,065.12/28,218,037.76
  6. Step 6: Final answer
    x = 11,612,245.15

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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.