Home / 13,099,572.46-18,077,533.64-7,219,421.71

Finding the Fourth Proportional to 13,099,572.46, 18,077,533.64 and 7,219,421.71

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Solution

The fourth proportional to 13,099,572.46, 18,077,533.64 and 7,219,421.71 is: 9,962,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,099,572.46 : 18,077,533.64 = 7,219,421.71 : x
  2. Step 2: Convert to fraction form
    13,099,572.46/18,077,533.64 = 7,219,421.71/x
  3. Step 3: Cross multiply
    13,099,572.46x = 18,077,533.64 × 7,219,421.71
  4. Step 4: Simplify right side
    13,099,572.46x = 130,509,338,823,871.33
  5. Step 5: Solve for x
    x = 130,509,338,823,871.33/13,099,572.46
  6. Step 6: Final answer
    x = 9,962,870.10

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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.