Home / 806,618,344.80-1,210,076,816.40-261,377,666.40

Finding the Fourth Proportional to 806,618,344.80, 1,210,076,816.40 and 261,377,666.40

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Solution

The fourth proportional to 806,618,344.80, 1,210,076,816.40 and 261,377,666.40 is: 392,114,878.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,618,344.80 : 1,210,076,816.40 = 261,377,666.40 : x
  2. Step 2: Convert to fraction form
    806,618,344.80/1,210,076,816.40 = 261,377,666.40/x
  3. Step 3: Cross multiply
    806,618,344.80x = 1,210,076,816.40 × 261,377,666.40
  4. Step 4: Simplify right side
    806,618,344.80x = 316,287,054,435,373,312
  5. Step 5: Solve for x
    x = 316,287,054,435,373,312/806,618,344.80
  6. Step 6: Final answer
    x = 392,114,878.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.