Home / 10,688,086.40-15,994,804.80-7,478,153.60

Finding the Fourth Proportional to 10,688,086.40, 15,994,804.80 and 7,478,153.60

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Solution

The fourth proportional to 10,688,086.40, 15,994,804.80 and 7,478,153.60 is: 11,191,115.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688,086.40 : 15,994,804.80 = 7,478,153.60 : x
  2. Step 2: Convert to fraction form
    10,688,086.40/15,994,804.80 = 7,478,153.60/x
  3. Step 3: Cross multiply
    10,688,086.40x = 15,994,804.80 × 7,478,153.60
  4. Step 4: Simplify right side
    10,688,086.40x = 119,611,607,096,417.28
  5. Step 5: Solve for x
    x = 119,611,607,096,417.28/10,688,086.40
  6. Step 6: Final answer
    x = 11,191,115.29

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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.