Home / 28,731,176.00-39,649,860.28-15,679,275.67

Finding the Fourth Proportional to 28,731,176.00, 39,649,860.28 and 15,679,275.67

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Solution

The fourth proportional to 28,731,176.00, 39,649,860.28 and 15,679,275.67 is: 21,637,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731,176.00 : 39,649,860.28 = 15,679,275.67 : x
  2. Step 2: Convert to fraction form
    28,731,176.00/39,649,860.28 = 15,679,275.67/x
  3. Step 3: Cross multiply
    28,731,176.00x = 39,649,860.28 × 15,679,275.67
  4. Step 4: Simplify right side
    28,731,176.00x = 621,681,089,365,038.38
  5. Step 5: Solve for x
    x = 621,681,089,365,038.38/28,731,176.00
  6. Step 6: Final answer
    x = 21,637,857.40

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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.