Home / 881,547,631.28-1,216,499,257.48-479,663,034.16

Finding the Fourth Proportional to 881,547,631.28, 1,216,499,257.48 and 479,663,034.16

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Solution

The fourth proportional to 881,547,631.28, 1,216,499,257.48 and 479,663,034.16 is: 661,915,141.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,547,631.28 : 1,216,499,257.48 = 479,663,034.16 : x
  2. Step 2: Convert to fraction form
    881,547,631.28/1,216,499,257.48 = 479,663,034.16/x
  3. Step 3: Cross multiply
    881,547,631.28x = 1,216,499,257.48 × 479,663,034.16
  4. Step 4: Simplify right side
    881,547,631.28x = 583,509,724,896,243,968
  5. Step 5: Solve for x
    x = 583,509,724,896,243,968/881,547,631.28
  6. Step 6: Final answer
    x = 661,915,141.27

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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.