Home / 524,636,039.78-787,226,415.42-213,971,574.42

Finding the Fourth Proportional to 524,636,039.78, 787,226,415.42 and 213,971,574.42

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Solution

The fourth proportional to 524,636,039.78, 787,226,415.42 and 213,971,574.42 is: 321,068,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,636,039.78 : 787,226,415.42 = 213,971,574.42 : x
  2. Step 2: Convert to fraction form
    524,636,039.78/787,226,415.42 = 213,971,574.42/x
  3. Step 3: Cross multiply
    524,636,039.78x = 787,226,415.42 × 213,971,574.42
  4. Step 4: Simplify right side
    524,636,039.78x = 168,444,075,532,430,336
  5. Step 5: Solve for x
    x = 168,444,075,532,430,336/524,636,039.78
  6. Step 6: Final answer
    x = 321,068,441.28

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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.