Home / 786,888,193.80-1,181,088,117.90-399,148,840.20

Finding the Fourth Proportional to 786,888,193.80, 1,181,088,117.90 and 399,148,840.20

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Solution

The fourth proportional to 786,888,193.80, 1,181,088,117.90 and 399,148,840.20 is: 599,106,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,888,193.80 : 1,181,088,117.90 = 399,148,840.20 : x
  2. Step 2: Convert to fraction form
    786,888,193.80/1,181,088,117.90 = 399,148,840.20/x
  3. Step 3: Cross multiply
    786,888,193.80x = 1,181,088,117.90 × 399,148,840.20
  4. Step 4: Simplify right side
    786,888,193.80x = 471,429,952,433,785,856
  5. Step 5: Solve for x
    x = 471,429,952,433,785,856/786,888,193.80
  6. Step 6: Final answer
    x = 599,106,653.46

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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.