Home / 647,353,900.65-971,030,850.98-370,721,145.45

Finding the Fourth Proportional to 647,353,900.65, 971,030,850.98 and 370,721,145.45

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Solution

The fourth proportional to 647,353,900.65, 971,030,850.98 and 370,721,145.45 is: 556,081,718.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,353,900.65 : 971,030,850.98 = 370,721,145.45 : x
  2. Step 2: Convert to fraction form
    647,353,900.65/971,030,850.98 = 370,721,145.45/x
  3. Step 3: Cross multiply
    647,353,900.65x = 971,030,850.98 × 370,721,145.45
  4. Step 4: Simplify right side
    647,353,900.65x = 359,981,669,340,740,224
  5. Step 5: Solve for x
    x = 359,981,669,340,740,224/647,353,900.65
  6. Step 6: Final answer
    x = 556,081,718.18

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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.