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Finding the Fourth Proportional to 894,628,037.12, 1,234,574,919.20 and 492,734,068.40

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Solution

The fourth proportional to 894,628,037.12, 1,234,574,919.20 and 492,734,068.40 is: 679,966,530.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    894,628,037.12 : 1,234,574,919.20 = 492,734,068.40 : x
  2. Step 2: Convert to fraction form
    894,628,037.12/1,234,574,919.20 = 492,734,068.40/x
  3. Step 3: Cross multiply
    894,628,037.12x = 1,234,574,919.20 × 492,734,068.40
  4. Step 4: Simplify right side
    894,628,037.12x = 608,317,122,682,017,280
  5. Step 5: Solve for x
    x = 608,317,122,682,017,280/894,628,037.12
  6. Step 6: Final answer
    x = 679,966,530.72

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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.