Home / 1,954,264,807.70-2,931,822,364.35-643,943,878.10

Finding the Fourth Proportional to 1,954,264,807.70, 2,931,822,364.35 and 643,943,878.10

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Solution

The fourth proportional to 1,954,264,807.70, 2,931,822,364.35 and 643,943,878.10 is: 966,055,907.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954,264,807.70 : 2,931,822,364.35 = 643,943,878.10 : x
  2. Step 2: Convert to fraction form
    1,954,264,807.70/2,931,822,364.35 = 643,943,878.10/x
  3. Step 3: Cross multiply
    1,954,264,807.70x = 2,931,822,364.35 × 643,943,878.10
  4. Step 4: Simplify right side
    1,954,264,807.70x = 1,887,929,063,199,850,240
  5. Step 5: Solve for x
    x = 1,887,929,063,199,850,240/1,954,264,807.70
  6. Step 6: Final answer
    x = 966,055,907.96

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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.