Home / 30,308,045.40-45,462,068.10-18,191,190.60

Finding the Fourth Proportional to 30,308,045.40, 45,462,068.10 and 18,191,190.60

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Solution

The fourth proportional to 30,308,045.40, 45,462,068.10 and 18,191,190.60 is: 27,286,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,308,045.40 : 45,462,068.10 = 18,191,190.60 : x
  2. Step 2: Convert to fraction form
    30,308,045.40/45,462,068.10 = 18,191,190.60/x
  3. Step 3: Cross multiply
    30,308,045.40x = 45,462,068.10 × 18,191,190.60
  4. Step 4: Simplify right side
    30,308,045.40x = 827,009,145,877,280
  5. Step 5: Solve for x
    x = 827,009,145,877,280/30,308,045.40
  6. Step 6: Final answer
    x = 27,286,785.90

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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.