Home / 456,696,121-630,240,975.78-247,852,209.64

Finding the Fourth Proportional to 456,696,121, 630,240,975.78 and 247,852,209.64

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Solution

The fourth proportional to 456,696,121, 630,240,975.78 and 247,852,209.64 is: 342,036,227.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,696,121 : 630,240,975.78 = 247,852,209.64 : x
  2. Step 2: Convert to fraction form
    456,696,121/630,240,975.78 = 247,852,209.64/x
  3. Step 3: Cross multiply
    456,696,121x = 630,240,975.78 × 247,852,209.64
  4. Step 4: Simplify right side
    456,696,121x = 156,206,618,452,742,720
  5. Step 5: Solve for x
    x = 156,206,618,452,742,720/456,696,121
  6. Step 6: Final answer
    x = 342,036,227.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.