Home / 648,686,715.20-972,935,594.40-188,576,907.20

Finding the Fourth Proportional to 648,686,715.20, 972,935,594.40 and 188,576,907.20

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Solution

The fourth proportional to 648,686,715.20, 972,935,594.40 and 188,576,907.20 is: 282,837,895.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,686,715.20 : 972,935,594.40 = 188,576,907.20 : x
  2. Step 2: Convert to fraction form
    648,686,715.20/972,935,594.40 = 188,576,907.20/x
  3. Step 3: Cross multiply
    648,686,715.20x = 972,935,594.40 × 188,576,907.20
  4. Step 4: Simplify right side
    648,686,715.20x = 183,473,185,296,745,632
  5. Step 5: Solve for x
    x = 183,473,185,296,745,632/648,686,715.20
  6. Step 6: Final answer
    x = 282,837,895.39

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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.