Home / 867,116,894-1,196,618,295.72-470,639,882.28

Finding the Fourth Proportional to 867,116,894, 1,196,618,295.72 and 470,639,882.28

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Solution

The fourth proportional to 867,116,894, 1,196,618,295.72 and 470,639,882.28 is: 649,481,399.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,116,894 : 1,196,618,295.72 = 470,639,882.28 : x
  2. Step 2: Convert to fraction form
    867,116,894/1,196,618,295.72 = 470,639,882.28/x
  3. Step 3: Cross multiply
    867,116,894x = 1,196,618,295.72 × 470,639,882.28
  4. Step 4: Simplify right side
    867,116,894x = 563,176,293,831,755,008
  5. Step 5: Solve for x
    x = 563,176,293,831,755,008/867,116,894
  6. Step 6: Final answer
    x = 649,481,399.48

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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.