Home / 716,066,442,725.40-988,175,704,669.68-407,417,794,272.28

Finding the Fourth Proportional to 716,066,442,725.40, 988,175,704,669.68 and 407,417,794,272.28

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Solution

The fourth proportional to 716,066,442,725.40, 988,175,704,669.68 and 407,417,794,272.28 is: 562,238,839,761.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,066,442,725.40 : 988,175,704,669.68 = 407,417,794,272.28 : x
  2. Step 2: Convert to fraction form
    716,066,442,725.40/988,175,704,669.68 = 407,417,794,272.28/x
  3. Step 3: Cross multiply
    716,066,442,725.40x = 988,175,704,669.68 × 407,417,794,272.28
  4. Step 4: Simplify right side
    716,066,442,725.40x = 402,600,365,949,977,028,984,832
  5. Step 5: Solve for x
    x = 402,600,365,949,977,028,984,832/716,066,442,725.40
  6. Step 6: Final answer
    x = 562,238,839,761.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.