Home / 172,828,590.56-238,521,938.05-105,891,970.63

Finding the Fourth Proportional to 172,828,590.56, 238,521,938.05 and 105,891,970.63

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Solution

The fourth proportional to 172,828,590.56, 238,521,938.05 and 105,891,970.63 is: 146,142,244.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,828,590.56 : 238,521,938.05 = 105,891,970.63 : x
  2. Step 2: Convert to fraction form
    172,828,590.56/238,521,938.05 = 105,891,970.63/x
  3. Step 3: Cross multiply
    172,828,590.56x = 238,521,938.05 × 105,891,970.63
  4. Step 4: Simplify right side
    172,828,590.56x = 25,257,558,058,601,280
  5. Step 5: Solve for x
    x = 25,257,558,058,601,280/172,828,590.56
  6. Step 6: Final answer
    x = 146,142,244.04

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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.