Home / 213,506,501.70-319,622,023.35-127,200,483.30

Finding the Fourth Proportional to 213,506,501.70, 319,622,023.35 and 127,200,483.30

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Solution

The fourth proportional to 213,506,501.70, 319,622,023.35 and 127,200,483.30 is: 190,420,785.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,506,501.70 : 319,622,023.35 = 127,200,483.30 : x
  2. Step 2: Convert to fraction form
    213,506,501.70/319,622,023.35 = 127,200,483.30/x
  3. Step 3: Cross multiply
    213,506,501.70x = 319,622,023.35 × 127,200,483.30
  4. Step 4: Simplify right side
    213,506,501.70x = 40,656,075,843,443,888
  5. Step 5: Solve for x
    x = 40,656,075,843,443,888/213,506,501.70
  6. Step 6: Final answer
    x = 190,420,785.88

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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.