Home / 10,786,981.60-16,159,477.20-6,514,458.40

Finding the Fourth Proportional to 10,786,981.60, 16,159,477.20 and 6,514,458.40

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Solution

The fourth proportional to 10,786,981.60, 16,159,477.20 and 6,514,458.40 is: 9,759,008.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,786,981.60 : 16,159,477.20 = 6,514,458.40 : x
  2. Step 2: Convert to fraction form
    10,786,981.60/16,159,477.20 = 6,514,458.40/x
  3. Step 3: Cross multiply
    10,786,981.60x = 16,159,477.20 × 6,514,458.40
  4. Step 4: Simplify right side
    10,786,981.60x = 105,270,241,985,148.48
  5. Step 5: Solve for x
    x = 105,270,241,985,148.48/10,786,981.60
  6. Step 6: Final answer
    x = 9,759,008.21

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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.