Home / 212,668,002.23-318,820,050.53-81,604,332.47

Finding the Fourth Proportional to 212,668,002.23, 318,820,050.53 and 81,604,332.47

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Solution

The fourth proportional to 212,668,002.23, 318,820,050.53 and 81,604,332.47 is: 122,336,680.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,668,002.23 : 318,820,050.53 = 81,604,332.47 : x
  2. Step 2: Convert to fraction form
    212,668,002.23/318,820,050.53 = 81,604,332.47/x
  3. Step 3: Cross multiply
    212,668,002.23x = 318,820,050.53 × 81,604,332.47
  4. Step 4: Simplify right side
    212,668,002.23x = 26,017,097,399,550,196
  5. Step 5: Solve for x
    x = 26,017,097,399,550,196/212,668,002.23
  6. Step 6: Final answer
    x = 122,336,680.31

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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.