Home / 408,980,047.20-613,470,070.80-236,368,010.40

Finding the Fourth Proportional to 408,980,047.20, 613,470,070.80 and 236,368,010.40

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Solution

The fourth proportional to 408,980,047.20, 613,470,070.80 and 236,368,010.40 is: 354,552,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,980,047.20 : 613,470,070.80 = 236,368,010.40 : x
  2. Step 2: Convert to fraction form
    408,980,047.20/613,470,070.80 = 236,368,010.40/x
  3. Step 3: Cross multiply
    408,980,047.20x = 613,470,070.80 × 236,368,010.40
  4. Step 4: Simplify right side
    408,980,047.20x = 145,004,700,074,943,136
  5. Step 5: Solve for x
    x = 145,004,700,074,943,136/408,980,047.20
  6. Step 6: Final answer
    x = 354,552,015.60

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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.