Home / 1,318,536,063.88-1,819,512,946.83-782,710,632.57

Finding the Fourth Proportional to 1,318,536,063.88, 1,819,512,946.83 and 782,710,632.57

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Solution

The fourth proportional to 1,318,536,063.88, 1,819,512,946.83 and 782,710,632.57 is: 1,080,101,006.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,536,063.88 : 1,819,512,946.83 = 782,710,632.57 : x
  2. Step 2: Convert to fraction form
    1,318,536,063.88/1,819,512,946.83 = 782,710,632.57/x
  3. Step 3: Cross multiply
    1,318,536,063.88x = 1,819,512,946.83 × 782,710,632.57
  4. Step 4: Simplify right side
    1,318,536,063.88x = 1,424,152,129,583,249,408
  5. Step 5: Solve for x
    x = 1,424,152,129,583,249,408/1,318,536,063.88
  6. Step 6: Final answer
    x = 1,080,101,006.41

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1.5x scale

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.