Home / 128,054,497-191,964,043.10-46,153,331.32

Finding the Fourth Proportional to 128,054,497, 191,964,043.10 and 46,153,331.32

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Solution

The fourth proportional to 128,054,497, 191,964,043.10 and 46,153,331.32 is: 69,187,574.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,054,497 : 191,964,043.10 = 46,153,331.32 : x
  2. Step 2: Convert to fraction form
    128,054,497/191,964,043.10 = 46,153,331.32/x
  3. Step 3: Cross multiply
    128,054,497x = 191,964,043.10 × 46,153,331.32
  4. Step 4: Simplify right side
    128,054,497x = 8,859,780,082,721,060
  5. Step 5: Solve for x
    x = 8,859,780,082,721,060/128,054,497
  6. Step 6: Final answer
    x = 69,187,574.75

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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.