Home / 309,814,962.02-427,555,140.78-168,691,655.58

Finding the Fourth Proportional to 309,814,962.02, 427,555,140.78 and 168,691,655.58

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Solution

The fourth proportional to 309,814,962.02, 427,555,140.78 and 168,691,655.58 is: 232,800,198.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,814,962.02 : 427,555,140.78 = 168,691,655.58 : x
  2. Step 2: Convert to fraction form
    309,814,962.02/427,555,140.78 = 168,691,655.58/x
  3. Step 3: Cross multiply
    309,814,962.02x = 427,555,140.78 × 168,691,655.58
  4. Step 4: Simplify right side
    309,814,962.02x = 72,124,984,549,918,176
  5. Step 5: Solve for x
    x = 72,124,984,549,918,176/309,814,962.02
  6. Step 6: Final answer
    x = 232,800,198.16

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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.