Home / 15,686,877.65-21,648,416.85-8,717,848.93

Finding the Fourth Proportional to 15,686,877.65, 21,648,416.85 and 8,717,848.93

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Solution

The fourth proportional to 15,686,877.65, 21,648,416.85 and 8,717,848.93 is: 12,030,923.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686,877.65 : 21,648,416.85 = 8,717,848.93 : x
  2. Step 2: Convert to fraction form
    15,686,877.65/21,648,416.85 = 8,717,848.93/x
  3. Step 3: Cross multiply
    15,686,877.65x = 21,648,416.85 × 8,717,848.93
  4. Step 4: Simplify right side
    15,686,877.65x = 188,727,627,583,184.19
  5. Step 5: Solve for x
    x = 188,727,627,583,184.19/15,686,877.65
  6. Step 6: Final answer
    x = 12,030,923.67

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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.