Home / 28,158,966-38,859,374.70-15,281,910

Finding the Fourth Proportional to 28,158,966, 38,859,374.70 and 15,281,910

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Solution

The fourth proportional to 28,158,966, 38,859,374.70 and 15,281,910 is: 21,089,036.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158,966 : 38,859,374.70 = 15,281,910 : x
  2. Step 2: Convert to fraction form
    28,158,966/38,859,374.70 = 15,281,910/x
  3. Step 3: Cross multiply
    28,158,966x = 38,859,374.70 × 15,281,910
  4. Step 4: Simplify right side
    28,158,966x = 593,845,466,821,677
  5. Step 5: Solve for x
    x = 593,845,466,821,677/28,158,966
  6. Step 6: Final answer
    x = 21,089,036.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.