Home / 287,283,509.87-430,985,855.61-93,179,851.38

Finding the Fourth Proportional to 287,283,509.87, 430,985,855.61 and 93,179,851.38

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Solution

The fourth proportional to 287,283,509.87, 430,985,855.61 and 93,179,851.38 is: 139,789,429.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,283,509.87 : 430,985,855.61 = 93,179,851.38 : x
  2. Step 2: Convert to fraction form
    287,283,509.87/430,985,855.61 = 93,179,851.38/x
  3. Step 3: Cross multiply
    287,283,509.87x = 430,985,855.61 × 93,179,851.38
  4. Step 4: Simplify right side
    287,283,509.87x = 40,159,197,972,621,936
  5. Step 5: Solve for x
    x = 40,159,197,972,621,936/287,283,509.87
  6. Step 6: Final answer
    x = 139,789,429.58

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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.