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Finding the Fourth Proportional to 652,191,267.40, 978,286,901.10 and 445,567,006.60

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Solution

The fourth proportional to 652,191,267.40, 978,286,901.10 and 445,567,006.60 is: 668,350,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,191,267.40 : 978,286,901.10 = 445,567,006.60 : x
  2. Step 2: Convert to fraction form
    652,191,267.40/978,286,901.10 = 445,567,006.60/x
  3. Step 3: Cross multiply
    652,191,267.40x = 978,286,901.10 × 445,567,006.60
  4. Step 4: Simplify right side
    652,191,267.40x = 435,892,366,119,117,312
  5. Step 5: Solve for x
    x = 435,892,366,119,117,312/652,191,267.40
  6. Step 6: Final answer
    x = 668,350,509.90

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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.