Home / 706,521,939.51-975,000,321.09-393,249,428.04

Finding the Fourth Proportional to 706,521,939.51, 975,000,321.09 and 393,249,428.04

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Solution

The fourth proportional to 706,521,939.51, 975,000,321.09 and 393,249,428.04 is: 542,684,235.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,521,939.51 : 975,000,321.09 = 393,249,428.04 : x
  2. Step 2: Convert to fraction form
    706,521,939.51/975,000,321.09 = 393,249,428.04/x
  3. Step 3: Cross multiply
    706,521,939.51x = 975,000,321.09 × 393,249,428.04
  4. Step 4: Simplify right side
    706,521,939.51x = 383,418,318,607,458,880
  5. Step 5: Solve for x
    x = 383,418,318,607,458,880/706,521,939.51
  6. Step 6: Final answer
    x = 542,684,235.50

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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.