Home / 6,980,551.80-10,478,700.90-5,390,165.40

Finding the Fourth Proportional to 6,980,551.80, 10,478,700.90 and 5,390,165.40

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Solution

The fourth proportional to 6,980,551.80, 10,478,700.90 and 5,390,165.40 is: 8,091,327.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,980,551.80 : 10,478,700.90 = 5,390,165.40 : x
  2. Step 2: Convert to fraction form
    6,980,551.80/10,478,700.90 = 5,390,165.40/x
  3. Step 3: Cross multiply
    6,980,551.80x = 10,478,700.90 × 5,390,165.40
  4. Step 4: Simplify right side
    6,980,551.80x = 56,481,931,028,128.87
  5. Step 5: Solve for x
    x = 56,481,931,028,128.87/6,980,551.80
  6. Step 6: Final answer
    x = 8,091,327.54

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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.