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Finding the Fourth Proportional to 143,526,947.70, 215,290,421.55 and 143,526,947.70

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Solution

The fourth proportional to 143,526,947.70, 215,290,421.55 and 143,526,947.70 is: 215,290,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,526,947.70 : 215,290,421.55 = 143,526,947.70 : x
  2. Step 2: Convert to fraction form
    143,526,947.70/215,290,421.55 = 143,526,947.70/x
  3. Step 3: Cross multiply
    143,526,947.70x = 215,290,421.55 × 143,526,947.70
  4. Step 4: Simplify right side
    143,526,947.70x = 30,899,977,074,117,804
  5. Step 5: Solve for x
    x = 30,899,977,074,117,804/143,526,947.70
  6. Step 6: Final answer
    x = 215,290,421.55

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.