Home / 128,310,001.60-192,463,252.80-42,051,222.40

Finding the Fourth Proportional to 128,310,001.60, 192,463,252.80 and 42,051,222.40

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Solution

The fourth proportional to 128,310,001.60, 192,463,252.80 and 42,051,222.40 is: 63,076,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,310,001.60 : 192,463,252.80 = 42,051,222.40 : x
  2. Step 2: Convert to fraction form
    128,310,001.60/192,463,252.80 = 42,051,222.40/x
  3. Step 3: Cross multiply
    128,310,001.60x = 192,463,252.80 × 42,051,222.40
  4. Step 4: Simplify right side
    128,310,001.60x = 8,093,315,047,320,223
  5. Step 5: Solve for x
    x = 8,093,315,047,320,223/128,310,001.60
  6. Step 6: Final answer
    x = 63,076,260.20

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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.