Home / 472,393,386.30-708,590,079.45-213,617,048.70

Finding the Fourth Proportional to 472,393,386.30, 708,590,079.45 and 213,617,048.70

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Solution

The fourth proportional to 472,393,386.30, 708,590,079.45 and 213,617,048.70 is: 320,425,573.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,386.30 : 708,590,079.45 = 213,617,048.70 : x
  2. Step 2: Convert to fraction form
    472,393,386.30/708,590,079.45 = 213,617,048.70/x
  3. Step 3: Cross multiply
    472,393,386.30x = 708,590,079.45 × 213,617,048.70
  4. Step 4: Simplify right side
    472,393,386.30x = 151,366,921,510,207,520
  5. Step 5: Solve for x
    x = 151,366,921,510,207,520/472,393,386.30
  6. Step 6: Final answer
    x = 320,425,573.05

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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.