Home / 682,680,330.72-942,101,353.44-369,414,547.20

Finding the Fourth Proportional to 682,680,330.72, 942,101,353.44 and 369,414,547.20

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Solution

The fourth proportional to 682,680,330.72, 942,101,353.44 and 369,414,547.20 is: 509,793,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,680,330.72 : 942,101,353.44 = 369,414,547.20 : x
  2. Step 2: Convert to fraction form
    682,680,330.72/942,101,353.44 = 369,414,547.20/x
  3. Step 3: Cross multiply
    682,680,330.72x = 942,101,353.44 × 369,414,547.20
  4. Step 4: Simplify right side
    682,680,330.72x = 348,025,944,897,544,768
  5. Step 5: Solve for x
    x = 348,025,944,897,544,768/682,680,330.72
  6. Step 6: Final answer
    x = 509,793,426.35

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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.