Home / 112,095,009.40-168,142,514.10-81,484,007.80

Finding the Fourth Proportional to 112,095,009.40, 168,142,514.10 and 81,484,007.80

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Solution

The fourth proportional to 112,095,009.40, 168,142,514.10 and 81,484,007.80 is: 122,226,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,095,009.40 : 168,142,514.10 = 81,484,007.80 : x
  2. Step 2: Convert to fraction form
    112,095,009.40/168,142,514.10 = 81,484,007.80/x
  3. Step 3: Cross multiply
    112,095,009.40x = 168,142,514.10 × 81,484,007.80
  4. Step 4: Simplify right side
    112,095,009.40x = 13,700,925,930,436,008
  5. Step 5: Solve for x
    x = 13,700,925,930,436,008/112,095,009.40
  6. Step 6: Final answer
    x = 122,226,011.70

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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.