Home / 372,312,178.37-513,774,225.70-213,428,398.01

Finding the Fourth Proportional to 372,312,178.37, 513,774,225.70 and 213,428,398.01

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Solution

The fourth proportional to 372,312,178.37, 513,774,225.70 and 213,428,398.01 is: 294,521,684.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,312,178.37 : 513,774,225.70 = 213,428,398.01 : x
  2. Step 2: Convert to fraction form
    372,312,178.37/513,774,225.70 = 213,428,398.01/x
  3. Step 3: Cross multiply
    372,312,178.37x = 513,774,225.70 × 213,428,398.01
  4. Step 4: Simplify right side
    372,312,178.37x = 109,654,009,930,730,032
  5. Step 5: Solve for x
    x = 109,654,009,930,730,032/372,312,178.37
  6. Step 6: Final answer
    x = 294,521,684.50

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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.