Home / 786,657,811.89-1,085,587,997.46-434,234,031.69

Finding the Fourth Proportional to 786,657,811.89, 1,085,587,997.46 and 434,234,031.69

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Solution

The fourth proportional to 786,657,811.89, 1,085,587,997.46 and 434,234,031.69 is: 599,243,083.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,657,811.89 : 1,085,587,997.46 = 434,234,031.69 : x
  2. Step 2: Convert to fraction form
    786,657,811.89/1,085,587,997.46 = 434,234,031.69/x
  3. Step 3: Cross multiply
    786,657,811.89x = 1,085,587,997.46 × 434,234,031.69
  4. Step 4: Simplify right side
    786,657,811.89x = 471,399,252,891,329,280
  5. Step 5: Solve for x
    x = 471,399,252,891,329,280/786,657,811.89
  6. Step 6: Final answer
    x = 599,243,083.54

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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.