Home / 14,357,876.60-19,813,869.78-7,831,505.72

Finding the Fourth Proportional to 14,357,876.60, 19,813,869.78 and 7,831,505.72

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Solution

The fourth proportional to 14,357,876.60, 19,813,869.78 and 7,831,505.72 is: 10,807,477.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,357,876.60 : 19,813,869.78 = 7,831,505.72 : x
  2. Step 2: Convert to fraction form
    14,357,876.60/19,813,869.78 = 7,831,505.72/x
  3. Step 3: Cross multiply
    14,357,876.60x = 19,813,869.78 × 7,831,505.72
  4. Step 4: Simplify right side
    14,357,876.60x = 155,172,434,517,405.16
  5. Step 5: Solve for x
    x = 155,172,434,517,405.16/14,357,876.60
  6. Step 6: Final answer
    x = 10,807,477.93

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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.