Home / 830,273,325.40-1,245,409,988.10-524,919,136.60

Finding the Fourth Proportional to 830,273,325.40, 1,245,409,988.10 and 524,919,136.60

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Solution

The fourth proportional to 830,273,325.40, 1,245,409,988.10 and 524,919,136.60 is: 787,378,704.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,273,325.40 : 1,245,409,988.10 = 524,919,136.60 : x
  2. Step 2: Convert to fraction form
    830,273,325.40/1,245,409,988.10 = 524,919,136.60/x
  3. Step 3: Cross multiply
    830,273,325.40x = 1,245,409,988.10 × 524,919,136.60
  4. Step 4: Simplify right side
    830,273,325.40x = 653,739,535,666,468,224
  5. Step 5: Solve for x
    x = 653,739,535,666,468,224/830,273,325.40
  6. Step 6: Final answer
    x = 787,378,704.90

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1.5x scale

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.