Home / 13,355,678.07-18,430,654.86-7,475,310.50

Finding the Fourth Proportional to 13,355,678.07, 18,430,654.86 and 7,475,310.50

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Solution

The fourth proportional to 13,355,678.07, 18,430,654.86 and 7,475,310.50 is: 10,315,827.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355,678.07 : 18,430,654.86 = 7,475,310.50 : x
  2. Step 2: Convert to fraction form
    13,355,678.07/18,430,654.86 = 7,475,310.50/x
  3. Step 3: Cross multiply
    13,355,678.07x = 18,430,654.86 × 7,475,310.50
  4. Step 4: Simplify right side
    13,355,678.07x = 137,774,867,796,834.03
  5. Step 5: Solve for x
    x = 137,774,867,796,834.03/13,355,678.07
  6. Step 6: Final answer
    x = 10,315,827.25

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1.5x scale

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.