Home / 430,386,689.55-644,907,429.25-299,484,721.81

Finding the Fourth Proportional to 430,386,689.55, 644,907,429.25 and 299,484,721.81

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Solution

The fourth proportional to 430,386,689.55, 644,907,429.25 and 299,484,721.81 is: 448,759,050.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,386,689.55 : 644,907,429.25 = 299,484,721.81 : x
  2. Step 2: Convert to fraction form
    430,386,689.55/644,907,429.25 = 299,484,721.81/x
  3. Step 3: Cross multiply
    430,386,689.55x = 644,907,429.25 × 299,484,721.81
  4. Step 4: Simplify right side
    430,386,689.55x = 193,139,922,042,195,904
  5. Step 5: Solve for x
    x = 193,139,922,042,195,904/430,386,689.55
  6. Step 6: Final answer
    x = 448,759,050.24

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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.