Home / 127,872,443.60-191,808,665.40-47,076,693.20

Finding the Fourth Proportional to 127,872,443.60, 191,808,665.40 and 47,076,693.20

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Solution

The fourth proportional to 127,872,443.60, 191,808,665.40 and 47,076,693.20 is: 70,615,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,872,443.60 : 191,808,665.40 = 47,076,693.20 : x
  2. Step 2: Convert to fraction form
    127,872,443.60/191,808,665.40 = 47,076,693.20/x
  3. Step 3: Cross multiply
    127,872,443.60x = 191,808,665.40 × 47,076,693.20
  4. Step 4: Simplify right side
    127,872,443.60x = 9,029,717,694,137,256
  5. Step 5: Solve for x
    x = 9,029,717,694,137,256/127,872,443.60
  6. Step 6: Final answer
    x = 70,615,039.80

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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.