Home / 839,974,513.02-1,259,925,873.57-287,326,358.70

Finding the Fourth Proportional to 839,974,513.02, 1,259,925,873.57 and 287,326,358.70

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Solution

The fourth proportional to 839,974,513.02, 1,259,925,873.57 and 287,326,358.70 is: 430,977,259.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,974,513.02 : 1,259,925,873.57 = 287,326,358.70 : x
  2. Step 2: Convert to fraction form
    839,974,513.02/1,259,925,873.57 = 287,326,358.70/x
  3. Step 3: Cross multiply
    839,974,513.02x = 1,259,925,873.57 × 287,326,358.70
  4. Step 4: Simplify right side
    839,974,513.02x = 362,009,913,484,784,640
  5. Step 5: Solve for x
    x = 362,009,913,484,784,640/839,974,513.02
  6. Step 6: Final answer
    x = 430,977,259.28

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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.