Home / 7,827,386.40-11,741,079.60-7,130,656.80

Finding the Fourth Proportional to 7,827,386.40, 11,741,079.60 and 7,130,656.80

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Solution

The fourth proportional to 7,827,386.40, 11,741,079.60 and 7,130,656.80 is: 10,695,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827,386.40 : 11,741,079.60 = 7,130,656.80 : x
  2. Step 2: Convert to fraction form
    7,827,386.40/11,741,079.60 = 7,130,656.80/x
  3. Step 3: Cross multiply
    7,827,386.40x = 11,741,079.60 × 7,130,656.80
  4. Step 4: Simplify right side
    7,827,386.40x = 83,721,609,089,081.28
  5. Step 5: Solve for x
    x = 83,721,609,089,081.28/7,827,386.40
  6. Step 6: Final answer
    x = 10,695,985.20

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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.