Home / 7,772,990.02-11,660,979.47-2,980,305.50

Finding the Fourth Proportional to 7,772,990.02, 11,660,979.47 and 2,980,305.50

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Solution

The fourth proportional to 7,772,990.02, 11,660,979.47 and 2,980,305.50 is: 4,471,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772,990.02 : 11,660,979.47 = 2,980,305.50 : x
  2. Step 2: Convert to fraction form
    7,772,990.02/11,660,979.47 = 2,980,305.50/x
  3. Step 3: Cross multiply
    7,772,990.02x = 11,660,979.47 × 2,980,305.50
  4. Step 4: Simplify right side
    7,772,990.02x = 34,753,281,249,828.09
  5. Step 5: Solve for x
    x = 34,753,281,249,828.09/7,772,990.02
  6. Step 6: Final answer
    x = 4,471,031.25

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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.