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Finding the Fourth Proportional to 299,657,488.40, 448,730,405.40 and 239,191,312.40

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Solution

The fourth proportional to 299,657,488.40, 448,730,405.40 and 239,191,312.40 is: 358,183,655.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,657,488.40 : 448,730,405.40 = 239,191,312.40 : x
  2. Step 2: Convert to fraction form
    299,657,488.40/448,730,405.40 = 239,191,312.40/x
  3. Step 3: Cross multiply
    299,657,488.40x = 448,730,405.40 × 239,191,312.40
  4. Step 4: Simplify right side
    299,657,488.40x = 107,332,414,581,410,048
  5. Step 5: Solve for x
    x = 107,332,414,581,410,048/299,657,488.40
  6. Step 6: Final answer
    x = 358,183,655.46

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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.