Home / 7,139,325.80-10,708,988.70-6,828,334.40

Finding the Fourth Proportional to 7,139,325.80, 10,708,988.70 and 6,828,334.40

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Solution

The fourth proportional to 7,139,325.80, 10,708,988.70 and 6,828,334.40 is: 10,242,501.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,325.80 : 10,708,988.70 = 6,828,334.40 : x
  2. Step 2: Convert to fraction form
    7,139,325.80/10,708,988.70 = 6,828,334.40/x
  3. Step 3: Cross multiply
    7,139,325.80x = 10,708,988.70 × 6,828,334.40
  4. Step 4: Simplify right side
    7,139,325.80x = 73,124,555,929,421.28
  5. Step 5: Solve for x
    x = 73,124,555,929,421.28/7,139,325.80
  6. Step 6: Final answer
    x = 10,242,501.60

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Double scale
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Similar ratio
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1.5x scale

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.