Home / 287,671,389.37-397,094,472-188,558,520.10

Finding the Fourth Proportional to 287,671,389.37, 397,094,472 and 188,558,520.10

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Solution

The fourth proportional to 287,671,389.37, 397,094,472 and 188,558,520.10 is: 260,281,518.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,671,389.37 : 397,094,472 = 188,558,520.10 : x
  2. Step 2: Convert to fraction form
    287,671,389.37/397,094,472 = 188,558,520.10/x
  3. Step 3: Cross multiply
    287,671,389.37x = 397,094,472 × 188,558,520.10
  4. Step 4: Simplify right side
    287,671,389.37x = 74,875,545,979,218,144
  5. Step 5: Solve for x
    x = 74,875,545,979,218,144/287,671,389.37
  6. Step 6: Final answer
    x = 260,281,518.24

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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.