Home / 28,360,980.12-42,532,547.16-9,187,288.68

Finding the Fourth Proportional to 28,360,980.12, 42,532,547.16 and 9,187,288.68

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Solution

The fourth proportional to 28,360,980.12, 42,532,547.16 and 9,187,288.68 is: 13,778,042.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360,980.12 : 42,532,547.16 = 9,187,288.68 : x
  2. Step 2: Convert to fraction form
    28,360,980.12/42,532,547.16 = 9,187,288.68/x
  3. Step 3: Cross multiply
    28,360,980.12x = 42,532,547.16 × 9,187,288.68
  4. Step 4: Simplify right side
    28,360,980.12x = 390,758,789,054,634.12
  5. Step 5: Solve for x
    x = 390,758,789,054,634.12/28,360,980.12
  6. Step 6: Final answer
    x = 13,778,042.49

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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.