Home / 15,686,878.07-21,648,417.43-8,717,849.35

Finding the Fourth Proportional to 15,686,878.07, 21,648,417.43 and 8,717,849.35

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Solution

The fourth proportional to 15,686,878.07, 21,648,417.43 and 8,717,849.35 is: 12,030,924.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,878.07 : 21,648,417.43 = 8,717,849.35 : x
  2. Step 2: Convert to fraction form
    15,686,878.07/21,648,417.43 = 8,717,849.35/x
  3. Step 3: Cross multiply
    15,686,878.07x = 21,648,417.43 × 8,717,849.35
  4. Step 4: Simplify right side
    15,686,878.07x = 188,727,641,791,528.62
  5. Step 5: Solve for x
    x = 188,727,641,791,528.62/15,686,878.07
  6. Step 6: Final answer
    x = 12,030,924.25

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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.