Home / 403,477,986.60-605,216,979.90-240,219,311.40

Finding the Fourth Proportional to 403,477,986.60, 605,216,979.90 and 240,219,311.40

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Solution

The fourth proportional to 403,477,986.60, 605,216,979.90 and 240,219,311.40 is: 360,328,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,477,986.60 : 605,216,979.90 = 240,219,311.40 : x
  2. Step 2: Convert to fraction form
    403,477,986.60/605,216,979.90 = 240,219,311.40/x
  3. Step 3: Cross multiply
    403,477,986.60x = 605,216,979.90 × 240,219,311.40
  4. Step 4: Simplify right side
    403,477,986.60x = 145,384,806,159,165,632
  5. Step 5: Solve for x
    x = 145,384,806,159,165,632/403,477,986.60
  6. Step 6: Final answer
    x = 360,328,967.10

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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.