Home / 210,935,723.20-316,403,584.80-209,592,030.40

Finding the Fourth Proportional to 210,935,723.20, 316,403,584.80 and 209,592,030.40

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Solution

The fourth proportional to 210,935,723.20, 316,403,584.80 and 209,592,030.40 is: 314,388,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,935,723.20 : 316,403,584.80 = 209,592,030.40 : x
  2. Step 2: Convert to fraction form
    210,935,723.20/316,403,584.80 = 209,592,030.40/x
  3. Step 3: Cross multiply
    210,935,723.20x = 316,403,584.80 × 209,592,030.40
  4. Step 4: Simplify right side
    210,935,723.20x = 66,315,669,764,070,584
  5. Step 5: Solve for x
    x = 66,315,669,764,070,584/210,935,723.20
  6. Step 6: Final answer
    x = 314,388,045.60

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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.