Home / 831,314,225.60-1,247,083,312.80-286,222,846.40

Finding the Fourth Proportional to 831,314,225.60, 1,247,083,312.80 and 286,222,846.40

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Solution

The fourth proportional to 831,314,225.60, 1,247,083,312.80 and 286,222,846.40 is: 429,372,822.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,314,225.60 : 1,247,083,312.80 = 286,222,846.40 : x
  2. Step 2: Convert to fraction form
    831,314,225.60/1,247,083,312.80 = 286,222,846.40/x
  3. Step 3: Cross multiply
    831,314,225.60x = 1,247,083,312.80 × 286,222,846.40
  4. Step 4: Simplify right side
    831,314,225.60x = 356,943,735,487,557,504
  5. Step 5: Solve for x
    x = 356,943,735,487,557,504/831,314,225.60
  6. Step 6: Final answer
    x = 429,372,822.57

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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.