Home / 39,350,403,813.28-54,304,852,266.48-21,528,653,487.52

Finding the Fourth Proportional to 39,350,403,813.28, 54,304,852,266.48 and 21,528,653,487.52

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Solution

The fourth proportional to 39,350,403,813.28, 54,304,852,266.48 and 21,528,653,487.52 is: 29,710,250,311.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,350,403,813.28 : 54,304,852,266.48 = 21,528,653,487.52 : x
  2. Step 2: Convert to fraction form
    39,350,403,813.28/54,304,852,266.48 = 21,528,653,487.52/x
  3. Step 3: Cross multiply
    39,350,403,813.28x = 54,304,852,266.48 × 21,528,653,487.52
  4. Step 4: Simplify right side
    39,350,403,813.28x = 1,169,110,347,136,013,172,736
  5. Step 5: Solve for x
    x = 1,169,110,347,136,013,172,736/39,350,403,813.28
  6. Step 6: Final answer
    x = 29,710,250,311.12

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1.5x scale

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.