Home / 906,988,095.50-1,251,563,776.81-505,071,473.72

Finding the Fourth Proportional to 906,988,095.50, 1,251,563,776.81 and 505,071,473.72

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Solution

The fourth proportional to 906,988,095.50, 1,251,563,776.81 and 505,071,473.72 is: 696,954,198.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,988,095.50 : 1,251,563,776.81 = 505,071,473.72 : x
  2. Step 2: Convert to fraction form
    906,988,095.50/1,251,563,776.81 = 505,071,473.72/x
  3. Step 3: Cross multiply
    906,988,095.50x = 1,251,563,776.81 × 505,071,473.72
  4. Step 4: Simplify right side
    906,988,095.50x = 632,129,161,200,475,264
  5. Step 5: Solve for x
    x = 632,129,161,200,475,264/906,988,095.50
  6. Step 6: Final answer
    x = 696,954,198.56

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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.