Home / 217,326,315.22-299,912,478.69-118,209,368.50

Finding the Fourth Proportional to 217,326,315.22, 299,912,478.69 and 118,209,368.50

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Solution

The fourth proportional to 217,326,315.22, 299,912,478.69 and 118,209,368.50 is: 163,130,105.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,326,315.22 : 299,912,478.69 = 118,209,368.50 : x
  2. Step 2: Convert to fraction form
    217,326,315.22/299,912,478.69 = 118,209,368.50/x
  3. Step 3: Cross multiply
    217,326,315.22x = 299,912,478.69 × 118,209,368.50
  4. Step 4: Simplify right side
    217,326,315.22x = 35,452,464,711,214,608
  5. Step 5: Solve for x
    x = 35,452,464,711,214,608/217,326,315.22
  6. Step 6: Final answer
    x = 163,130,105.41

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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.