Home / 867,118,724.11-1,196,620,808.43-470,641,691.94

Finding the Fourth Proportional to 867,118,724.11, 1,196,620,808.43 and 470,641,691.94

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Solution

The fourth proportional to 867,118,724.11, 1,196,620,808.43 and 470,641,691.94 is: 649,483,889.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,118,724.11 : 1,196,620,808.43 = 470,641,691.94 : x
  2. Step 2: Convert to fraction form
    867,118,724.11/1,196,620,808.43 = 470,641,691.94/x
  3. Step 3: Cross multiply
    867,118,724.11x = 1,196,620,808.43 × 470,641,691.94
  4. Step 4: Simplify right side
    867,118,724.11x = 563,179,641,890,105,856
  5. Step 5: Solve for x
    x = 563,179,641,890,105,856/867,118,724.11
  6. Step 6: Final answer
    x = 649,483,889.84

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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.