Home / 309,961,870,417.35-427,747,377,701.28-167,391,130,465.34

Finding the Fourth Proportional to 309,961,870,417.35, 427,747,377,701.28 and 167,391,130,465.34

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Solution

The fourth proportional to 309,961,870,417.35, 427,747,377,701.28 and 167,391,130,465.34 is: 230,999,758,165.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,961,870,417.35 : 427,747,377,701.28 = 167,391,130,465.34 : x
  2. Step 2: Convert to fraction form
    309,961,870,417.35/427,747,377,701.28 = 167,391,130,465.34/x
  3. Step 3: Cross multiply
    309,961,870,417.35x = 427,747,377,701.28 × 167,391,130,465.34
  4. Step 4: Simplify right side
    309,961,870,417.35x = 71,601,117,107,002,032,521,216
  5. Step 5: Solve for x
    x = 71,601,117,107,002,032,521,216/309,961,870,417.35
  6. Step 6: Final answer
    x = 230,999,758,165.72

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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.