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Finding the Fourth Proportional to 299,287,807.80, 448,931,711.70 and 196,495,308.60

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Solution

The fourth proportional to 299,287,807.80, 448,931,711.70 and 196,495,308.60 is: 294,742,962.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,287,807.80 : 448,931,711.70 = 196,495,308.60 : x
  2. Step 2: Convert to fraction form
    299,287,807.80/448,931,711.70 = 196,495,308.60/x
  3. Step 3: Cross multiply
    299,287,807.80x = 448,931,711.70 × 196,495,308.60
  4. Step 4: Simplify right side
    299,287,807.80x = 88,212,975,230,817,728
  5. Step 5: Solve for x
    x = 88,212,975,230,817,728/299,287,807.80
  6. Step 6: Final answer
    x = 294,742,962.90

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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.