Home / 157,553,009.80-236,572,817.10-85,889,393.80

Finding the Fourth Proportional to 157,553,009.80, 236,572,817.10 and 85,889,393.80

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Solution

The fourth proportional to 157,553,009.80, 236,572,817.10 and 85,889,393.80 is: 128,966,726.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,553,009.80 : 236,572,817.10 = 85,889,393.80 : x
  2. Step 2: Convert to fraction form
    157,553,009.80/236,572,817.10 = 85,889,393.80/x
  3. Step 3: Cross multiply
    157,553,009.80x = 236,572,817.10 × 85,889,393.80
  4. Step 4: Simplify right side
    157,553,009.80x = 20,319,095,850,277,272
  5. Step 5: Solve for x
    x = 20,319,095,850,277,272/157,553,009.80
  6. Step 6: Final answer
    x = 128,966,726.03

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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.