Home / 217,745,688.40-326,618,532.60-145,186,277.20

Finding the Fourth Proportional to 217,745,688.40, 326,618,532.60 and 145,186,277.20

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Solution

The fourth proportional to 217,745,688.40, 326,618,532.60 and 145,186,277.20 is: 217,779,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,745,688.40 : 326,618,532.60 = 145,186,277.20 : x
  2. Step 2: Convert to fraction form
    217,745,688.40/326,618,532.60 = 145,186,277.20/x
  3. Step 3: Cross multiply
    217,745,688.40x = 326,618,532.60 × 145,186,277.20
  4. Step 4: Simplify right side
    217,745,688.40x = 47,420,528,812,720,840
  5. Step 5: Solve for x
    x = 47,420,528,812,720,840/217,745,688.40
  6. Step 6: Final answer
    x = 217,779,415.80

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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.