Home / 204,768,051.30-307,152,076.95-128,240,547.30

Finding the Fourth Proportional to 204,768,051.30, 307,152,076.95 and 128,240,547.30

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Solution

The fourth proportional to 204,768,051.30, 307,152,076.95 and 128,240,547.30 is: 192,360,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,768,051.30 : 307,152,076.95 = 128,240,547.30 : x
  2. Step 2: Convert to fraction form
    204,768,051.30/307,152,076.95 = 128,240,547.30/x
  3. Step 3: Cross multiply
    204,768,051.30x = 307,152,076.95 × 128,240,547.30
  4. Step 4: Simplify right side
    204,768,051.30x = 39,389,350,452,399,712
  5. Step 5: Solve for x
    x = 39,389,350,452,399,712/204,768,051.30
  6. Step 6: Final answer
    x = 192,360,820.95

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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.