Home / 372,312,218.98-513,774,281.64-213,428,438.56

Finding the Fourth Proportional to 372,312,218.98, 513,774,281.64 and 213,428,438.56

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Solution

The fourth proportional to 372,312,218.98, 513,774,281.64 and 213,428,438.56 is: 294,521,740.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,312,218.98 : 513,774,281.64 = 213,428,438.56 : x
  2. Step 2: Convert to fraction form
    372,312,218.98/513,774,281.64 = 213,428,438.56/x
  3. Step 3: Cross multiply
    372,312,218.98x = 513,774,281.64 × 213,428,438.56
  4. Step 4: Simplify right side
    372,312,218.98x = 109,654,042,702,710,880
  5. Step 5: Solve for x
    x = 109,654,042,702,710,880/372,312,218.98
  6. Step 6: Final answer
    x = 294,521,740.39

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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.