Home / 706,521,940.51-975,000,322.47-393,249,429.04

Finding the Fourth Proportional to 706,521,940.51, 975,000,322.47 and 393,249,429.04

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Solution

The fourth proportional to 706,521,940.51, 975,000,322.47 and 393,249,429.04 is: 542,684,236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,521,940.51 : 975,000,322.47 = 393,249,429.04 : x
  2. Step 2: Convert to fraction form
    706,521,940.51/975,000,322.47 = 393,249,429.04/x
  3. Step 3: Cross multiply
    706,521,940.51x = 975,000,322.47 × 393,249,429.04
  4. Step 4: Simplify right side
    706,521,940.51x = 383,418,320,125,143,424
  5. Step 5: Solve for x
    x = 383,418,320,125,143,424/706,521,940.51
  6. Step 6: Final answer
    x = 542,684,236.88

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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.