Home / 299,287,639.40-448,931,459.10-197,166,986.60

Finding the Fourth Proportional to 299,287,639.40, 448,931,459.10 and 197,166,986.60

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Solution

The fourth proportional to 299,287,639.40, 448,931,459.10 and 197,166,986.60 is: 295,750,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,287,639.40 : 448,931,459.10 = 197,166,986.60 : x
  2. Step 2: Convert to fraction form
    299,287,639.40/448,931,459.10 = 197,166,986.60/x
  3. Step 3: Cross multiply
    299,287,639.40x = 448,931,459.10 × 197,166,986.60
  4. Step 4: Simplify right side
    299,287,639.40x = 88,514,462,980,688,144
  5. Step 5: Solve for x
    x = 88,514,462,980,688,144/299,287,639.40
  6. Step 6: Final answer
    x = 295,750,479.90

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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.