Home / 1,209,117,721,644.80-1,813,931,302,581.30-392,226,683,582.40

Finding the Fourth Proportional to 1,209,117,721,644.80, 1,813,931,302,581.30 and 392,226,683,582.40

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Solution

The fourth proportional to 1,209,117,721,644.80, 1,813,931,302,581.30 and 392,226,683,582.40 is: 588,422,654,239.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,117,721,644.80 : 1,813,931,302,581.30 = 392,226,683,582.40 : x
  2. Step 2: Convert to fraction form
    1,209,117,721,644.80/1,813,931,302,581.30 = 392,226,683,582.40/x
  3. Step 3: Cross multiply
    1,209,117,721,644.80x = 1,813,931,302,581.30 × 392,226,683,582.40
  4. Step 4: Simplify right side
    1,209,117,721,644.80x = 711,472,259,057,766,310,608,896
  5. Step 5: Solve for x
    x = 711,472,259,057,766,310,608,896/1,209,117,721,644.80
  6. Step 6: Final answer
    x = 588,422,654,239.10

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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.