Home / 1,053,893,428.80-1,579,706,402.40-398,591,246.40

Finding the Fourth Proportional to 1,053,893,428.80, 1,579,706,402.40 and 398,591,246.40

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Solution

The fourth proportional to 1,053,893,428.80, 1,579,706,402.40 and 398,591,246.40 is: 597,458,079.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,893,428.80 : 1,579,706,402.40 = 398,591,246.40 : x
  2. Step 2: Convert to fraction form
    1,053,893,428.80/1,579,706,402.40 = 398,591,246.40/x
  3. Step 3: Cross multiply
    1,053,893,428.80x = 1,579,706,402.40 × 398,591,246.40
  4. Step 4: Simplify right side
    1,053,893,428.80x = 629,657,143,878,675,968
  5. Step 5: Solve for x
    x = 629,657,143,878,675,968/1,053,893,428.80
  6. Step 6: Final answer
    x = 597,458,079.41

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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.