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Finding the Fourth Proportional to 1,329,548,870.22, 1,994,363,934.32 and 456,137,987.01

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Solution

The fourth proportional to 1,329,548,870.22, 1,994,363,934.32 and 456,137,987.01 is: 684,220,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,548,870.22 : 1,994,363,934.32 = 456,137,987.01 : x
  2. Step 2: Convert to fraction form
    1,329,548,870.22/1,994,363,934.32 = 456,137,987.01/x
  3. Step 3: Cross multiply
    1,329,548,870.22x = 1,994,363,934.32 × 456,137,987.01
  4. Step 4: Simplify right side
    1,329,548,870.22x = 909,705,150,366,068,608
  5. Step 5: Solve for x
    x = 909,705,150,366,068,608/1,329,548,870.22
  6. Step 6: Final answer
    x = 684,220,919.40

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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.