Home / 509,953,931.40-764,930,897.10-164,942,434.20

Finding the Fourth Proportional to 509,953,931.40, 764,930,897.10 and 164,942,434.20

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Solution

The fourth proportional to 509,953,931.40, 764,930,897.10 and 164,942,434.20 is: 247,413,651.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,953,931.40 : 764,930,897.10 = 164,942,434.20 : x
  2. Step 2: Convert to fraction form
    509,953,931.40/764,930,897.10 = 164,942,434.20/x
  3. Step 3: Cross multiply
    509,953,931.40x = 764,930,897.10 × 164,942,434.20
  4. Step 4: Simplify right side
    509,953,931.40x = 126,169,564,162,463,712
  5. Step 5: Solve for x
    x = 126,169,564,162,463,712/509,953,931.40
  6. Step 6: Final answer
    x = 247,413,651.30

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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.