Home / 384,588,911.68-530,758,737.44-217,267,140.48

Finding the Fourth Proportional to 384,588,911.68, 530,758,737.44 and 217,267,140.48

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Solution

The fourth proportional to 384,588,911.68, 530,758,737.44 and 217,267,140.48 is: 299,843,364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,588,911.68 : 530,758,737.44 = 217,267,140.48 : x
  2. Step 2: Convert to fraction form
    384,588,911.68/530,758,737.44 = 217,267,140.48/x
  3. Step 3: Cross multiply
    384,588,911.68x = 530,758,737.44 × 217,267,140.48
  4. Step 4: Simplify right side
    384,588,911.68x = 115,316,433,168,363,904
  5. Step 5: Solve for x
    x = 115,316,433,168,363,904/384,588,911.68
  6. Step 6: Final answer
    x = 299,843,364.35

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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.