Home / 213,346,801.20-320,020,201.80-144,472,047.60

Finding the Fourth Proportional to 213,346,801.20, 320,020,201.80 and 144,472,047.60

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Solution

The fourth proportional to 213,346,801.20, 320,020,201.80 and 144,472,047.60 is: 216,708,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,346,801.20 : 320,020,201.80 = 144,472,047.60 : x
  2. Step 2: Convert to fraction form
    213,346,801.20/320,020,201.80 = 144,472,047.60/x
  3. Step 3: Cross multiply
    213,346,801.20x = 320,020,201.80 × 144,472,047.60
  4. Step 4: Simplify right side
    213,346,801.20x = 46,233,973,827,411,208
  5. Step 5: Solve for x
    x = 46,233,973,827,411,208/213,346,801.20
  6. Step 6: Final answer
    x = 216,708,071.40

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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.