Home / 14,073,381.09-19,421,117.15-7,878,478.55

Finding the Fourth Proportional to 14,073,381.09, 19,421,117.15 and 7,878,478.55

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Solution

The fourth proportional to 14,073,381.09, 19,421,117.15 and 7,878,478.55 is: 10,872,217.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,073,381.09 : 19,421,117.15 = 7,878,478.55 : x
  2. Step 2: Convert to fraction form
    14,073,381.09/19,421,117.15 = 7,878,478.55/x
  3. Step 3: Cross multiply
    14,073,381.09x = 19,421,117.15 × 7,878,478.55
  4. Step 4: Simplify right side
    14,073,381.09x = 153,008,854,746,814.16
  5. Step 5: Solve for x
    x = 153,008,854,746,814.16/14,073,381.09
  6. Step 6: Final answer
    x = 10,872,217.11

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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.