Home / 12,785,477.58-19,178,085.06-7,390,695.42

Finding the Fourth Proportional to 12,785,477.58, 19,178,085.06 and 7,390,695.42

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Solution

The fourth proportional to 12,785,477.58, 19,178,085.06 and 7,390,695.42 is: 11,085,967.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785,477.58 : 19,178,085.06 = 7,390,695.42 : x
  2. Step 2: Convert to fraction form
    12,785,477.58/19,178,085.06 = 7,390,695.42/x
  3. Step 3: Cross multiply
    12,785,477.58x = 19,178,085.06 × 7,390,695.42
  4. Step 4: Simplify right side
    12,785,477.58x = 141,739,385,417,312.41
  5. Step 5: Solve for x
    x = 141,739,385,417,312.41/12,785,477.58
  6. Step 6: Final answer
    x = 11,085,967.23

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1.5x scale

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.