Home / 12,949,095.70-19,423,643.55-4,428,673.30

Finding the Fourth Proportional to 12,949,095.70, 19,423,643.55 and 4,428,673.30

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Solution

The fourth proportional to 12,949,095.70, 19,423,643.55 and 4,428,673.30 is: 6,643,009.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,095.70 : 19,423,643.55 = 4,428,673.30 : x
  2. Step 2: Convert to fraction form
    12,949,095.70/19,423,643.55 = 4,428,673.30/x
  3. Step 3: Cross multiply
    12,949,095.70x = 19,423,643.55 × 4,428,673.30
  4. Step 4: Simplify right side
    12,949,095.70x = 86,020,971,578,602.22
  5. Step 5: Solve for x
    x = 86,020,971,578,602.22/12,949,095.70
  6. Step 6: Final answer
    x = 6,643,009.95

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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.