Home / 10,402,419.40-15,603,629.10-9,142,707.40

Finding the Fourth Proportional to 10,402,419.40, 15,603,629.10 and 9,142,707.40

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Solution

The fourth proportional to 10,402,419.40, 15,603,629.10 and 9,142,707.40 is: 13,714,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402,419.40 : 15,603,629.10 = 9,142,707.40 : x
  2. Step 2: Convert to fraction form
    10,402,419.40/15,603,629.10 = 9,142,707.40/x
  3. Step 3: Cross multiply
    10,402,419.40x = 15,603,629.10 × 9,142,707.40
  4. Step 4: Simplify right side
    10,402,419.40x = 142,659,415,239,425.34
  5. Step 5: Solve for x
    x = 142,659,415,239,425.34/10,402,419.40
  6. Step 6: Final answer
    x = 13,714,061.10

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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.