Home / 154,968,207.50-213,865,829.34-85,353,562.64

Finding the Fourth Proportional to 154,968,207.50, 213,865,829.34 and 85,353,562.64

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Solution

The fourth proportional to 154,968,207.50, 213,865,829.34 and 85,353,562.64 is: 117,793,260.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,968,207.50 : 213,865,829.34 = 85,353,562.64 : x
  2. Step 2: Convert to fraction form
    154,968,207.50/213,865,829.34 = 85,353,562.64/x
  3. Step 3: Cross multiply
    154,968,207.50x = 213,865,829.34 × 85,353,562.64
  4. Step 4: Simplify right side
    154,968,207.50x = 18,254,210,461,127,240
  5. Step 5: Solve for x
    x = 18,254,210,461,127,240/154,968,207.50
  6. Step 6: Final answer
    x = 117,793,260.67

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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.