Home / 647,353,961.40-971,030,942.10-370,721,206.20

Finding the Fourth Proportional to 647,353,961.40, 971,030,942.10 and 370,721,206.20

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Solution

The fourth proportional to 647,353,961.40, 971,030,942.10 and 370,721,206.20 is: 556,081,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,353,961.40 : 971,030,942.10 = 370,721,206.20 : x
  2. Step 2: Convert to fraction form
    647,353,961.40/971,030,942.10 = 370,721,206.20/x
  3. Step 3: Cross multiply
    647,353,961.40x = 971,030,942.10 × 370,721,206.20
  4. Step 4: Simplify right side
    647,353,961.40x = 359,981,762,112,834,368
  5. Step 5: Solve for x
    x = 359,981,762,112,834,368/647,353,961.40
  6. Step 6: Final answer
    x = 556,081,809.30

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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.