Home / 314,928,005.20-472,392,007.80-290,056,566.40

Finding the Fourth Proportional to 314,928,005.20, 472,392,007.80 and 290,056,566.40

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Solution

The fourth proportional to 314,928,005.20, 472,392,007.80 and 290,056,566.40 is: 435,084,849.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,005.20 : 472,392,007.80 = 290,056,566.40 : x
  2. Step 2: Convert to fraction form
    314,928,005.20/472,392,007.80 = 290,056,566.40/x
  3. Step 3: Cross multiply
    314,928,005.20x = 472,392,007.80 × 290,056,566.40
  4. Step 4: Simplify right side
    314,928,005.20x = 137,020,403,777,270,016
  5. Step 5: Solve for x
    x = 137,020,403,777,270,016/314,928,005.20
  6. Step 6: Final answer
    x = 435,084,849.60

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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.