Home / 28,161,191.56-42,259,557-11,987,117

Finding the Fourth Proportional to 28,161,191.56, 42,259,557 and 11,987,117

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Solution

The fourth proportional to 28,161,191.56, 42,259,557 and 11,987,117 is: 17,988,239.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161,191.56 : 42,259,557 = 11,987,117 : x
  2. Step 2: Convert to fraction form
    28,161,191.56/42,259,557 = 11,987,117/x
  3. Step 3: Cross multiply
    28,161,191.56x = 42,259,557 × 11,987,117
  4. Step 4: Simplify right side
    28,161,191.56x = 506,570,254,127,169
  5. Step 5: Solve for x
    x = 506,570,254,127,169/28,161,191.56
  6. Step 6: Final answer
    x = 17,988,239.35

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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.