Home / 862,912,692.80-1,294,369,039.20-499,219,841.60

Finding the Fourth Proportional to 862,912,692.80, 1,294,369,039.20 and 499,219,841.60

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Solution

The fourth proportional to 862,912,692.80, 1,294,369,039.20 and 499,219,841.60 is: 748,829,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,912,692.80 : 1,294,369,039.20 = 499,219,841.60 : x
  2. Step 2: Convert to fraction form
    862,912,692.80/1,294,369,039.20 = 499,219,841.60/x
  3. Step 3: Cross multiply
    862,912,692.80x = 1,294,369,039.20 × 499,219,841.60
  4. Step 4: Simplify right side
    862,912,692.80x = 646,174,706,721,368,192
  5. Step 5: Solve for x
    x = 646,174,706,721,368,192/862,912,692.80
  6. Step 6: Final answer
    x = 748,829,762.40

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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.