Home / 12,878,555.84-17,763,410.40-10,931,384.96

Finding the Fourth Proportional to 12,878,555.84, 17,763,410.40 and 10,931,384.96

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Solution

The fourth proportional to 12,878,555.84, 17,763,410.40 and 10,931,384.96 is: 15,077,674.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,555.84 : 17,763,410.40 = 10,931,384.96 : x
  2. Step 2: Convert to fraction form
    12,878,555.84/17,763,410.40 = 10,931,384.96/x
  3. Step 3: Cross multiply
    12,878,555.84x = 17,763,410.40 × 10,931,384.96
  4. Step 4: Simplify right side
    12,878,555.84x = 194,178,677,284,867.59
  5. Step 5: Solve for x
    x = 194,178,677,284,867.59/12,878,555.84
  6. Step 6: Final answer
    x = 15,077,674.83

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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.