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Finding the Fourth Proportional to 100,507,328.10, 140,423,281.20 and 100,507,328.10

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Solution

The fourth proportional to 100,507,328.10, 140,423,281.20 and 100,507,328.10 is: 140,423,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,507,328.10 : 140,423,281.20 = 100,507,328.10 : x
  2. Step 2: Convert to fraction form
    100,507,328.10/140,423,281.20 = 100,507,328.10/x
  3. Step 3: Cross multiply
    100,507,328.10x = 140,423,281.20 × 100,507,328.10
  4. Step 4: Simplify right side
    100,507,328.10x = 14,113,568,796,446,960
  5. Step 5: Solve for x
    x = 14,113,568,796,446,960/100,507,328.10
  6. Step 6: Final answer
    x = 140,423,281.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.