Home / 686,016,461.60-1,029,024,692.40-395,778,816.80

Finding the Fourth Proportional to 686,016,461.60, 1,029,024,692.40 and 395,778,816.80

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Solution

The fourth proportional to 686,016,461.60, 1,029,024,692.40 and 395,778,816.80 is: 593,668,225.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,016,461.60 : 1,029,024,692.40 = 395,778,816.80 : x
  2. Step 2: Convert to fraction form
    686,016,461.60/1,029,024,692.40 = 395,778,816.80/x
  3. Step 3: Cross multiply
    686,016,461.60x = 1,029,024,692.40 × 395,778,816.80
  4. Step 4: Simplify right side
    686,016,461.60x = 407,266,175,216,055,936
  5. Step 5: Solve for x
    x = 407,266,175,216,055,936/686,016,461.60
  6. Step 6: Final answer
    x = 593,668,225.20

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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.