Home / 613,272,405.20-919,908,607.80-368,384,392.40

Finding the Fourth Proportional to 613,272,405.20, 919,908,607.80 and 368,384,392.40

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Solution

The fourth proportional to 613,272,405.20, 919,908,607.80 and 368,384,392.40 is: 552,576,588.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,272,405.20 : 919,908,607.80 = 368,384,392.40 : x
  2. Step 2: Convert to fraction form
    613,272,405.20/919,908,607.80 = 368,384,392.40/x
  3. Step 3: Cross multiply
    613,272,405.20x = 919,908,607.80 × 368,384,392.40
  4. Step 4: Simplify right side
    613,272,405.20x = 338,879,973,547,932,864
  5. Step 5: Solve for x
    x = 338,879,973,547,932,864/613,272,405.20
  6. Step 6: Final answer
    x = 552,576,588.60

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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.