Home / 423,421,295.19-635,061,497.01-128,246,235.90

Finding the Fourth Proportional to 423,421,295.19, 635,061,497.01 and 128,246,235.90

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Solution

The fourth proportional to 423,421,295.19, 635,061,497.01 and 128,246,235.90 is: 192,348,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,421,295.19 : 635,061,497.01 = 128,246,235.90 : x
  2. Step 2: Convert to fraction form
    423,421,295.19/635,061,497.01 = 128,246,235.90/x
  3. Step 3: Cross multiply
    423,421,295.19x = 635,061,497.01 × 128,246,235.90
  4. Step 4: Simplify right side
    423,421,295.19x = 81,444,246,556,551,600
  5. Step 5: Solve for x
    x = 81,444,246,556,551,600/423,421,295.19
  6. Step 6: Final answer
    x = 192,348,017.17

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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.