Home / 307,020,816.96-460,400,128.32-177,717,678.72

Finding the Fourth Proportional to 307,020,816.96, 460,400,128.32 and 177,717,678.72

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Solution

The fourth proportional to 307,020,816.96, 460,400,128.32 and 177,717,678.72 is: 266,500,633.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,020,816.96 : 460,400,128.32 = 177,717,678.72 : x
  2. Step 2: Convert to fraction form
    307,020,816.96/460,400,128.32 = 177,717,678.72/x
  3. Step 3: Cross multiply
    307,020,816.96x = 460,400,128.32 × 177,717,678.72
  4. Step 4: Simplify right side
    307,020,816.96x = 81,821,242,087,420,528
  5. Step 5: Solve for x
    x = 81,821,242,087,420,528/307,020,816.96
  6. Step 6: Final answer
    x = 266,500,633.08

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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.