Home / 115,916,009.40-173,874,014.10-81,903,785.40

Finding the Fourth Proportional to 115,916,009.40, 173,874,014.10 and 81,903,785.40

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Solution

The fourth proportional to 115,916,009.40, 173,874,014.10 and 81,903,785.40 is: 122,855,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,916,009.40 : 173,874,014.10 = 81,903,785.40 : x
  2. Step 2: Convert to fraction form
    115,916,009.40/173,874,014.10 = 81,903,785.40/x
  3. Step 3: Cross multiply
    115,916,009.40x = 173,874,014.10 × 81,903,785.40
  4. Step 4: Simplify right side
    115,916,009.40x = 14,240,939,937,482,974
  5. Step 5: Solve for x
    x = 14,240,939,937,482,974/115,916,009.40
  6. Step 6: Final answer
    x = 122,855,678.10

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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.