Home / 145,224,014.40-217,836,021.60-77,031,604.80

Finding the Fourth Proportional to 145,224,014.40, 217,836,021.60 and 77,031,604.80

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Solution

The fourth proportional to 145,224,014.40, 217,836,021.60 and 77,031,604.80 is: 115,547,407.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,224,014.40 : 217,836,021.60 = 77,031,604.80 : x
  2. Step 2: Convert to fraction form
    145,224,014.40/217,836,021.60 = 77,031,604.80/x
  3. Step 3: Cross multiply
    145,224,014.40x = 217,836,021.60 × 77,031,604.80
  4. Step 4: Simplify right side
    145,224,014.40x = 16,780,258,327,095,462
  5. Step 5: Solve for x
    x = 16,780,258,327,095,462/145,224,014.40
  6. Step 6: Final answer
    x = 115,547,407.20

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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.