Home / 509,966,952.40-764,950,428.60-165,168,031.60

Finding the Fourth Proportional to 509,966,952.40, 764,950,428.60 and 165,168,031.60

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Solution

The fourth proportional to 509,966,952.40, 764,950,428.60 and 165,168,031.60 is: 247,752,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,966,952.40 : 764,950,428.60 = 165,168,031.60 : x
  2. Step 2: Convert to fraction form
    509,966,952.40/764,950,428.60 = 165,168,031.60/x
  3. Step 3: Cross multiply
    509,966,952.40x = 764,950,428.60 × 165,168,031.60
  4. Step 4: Simplify right side
    509,966,952.40x = 126,345,356,563,438,336
  5. Step 5: Solve for x
    x = 126,345,356,563,438,336/509,966,952.40
  6. Step 6: Final answer
    x = 247,752,047.40

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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.