Home / 7,139,823,795.20-10,709,735,692.80-4,237,447,347.20

Finding the Fourth Proportional to 7,139,823,795.20, 10,709,735,692.80 and 4,237,447,347.20

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Solution

The fourth proportional to 7,139,823,795.20, 10,709,735,692.80 and 4,237,447,347.20 is: 6,356,171,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,823,795.20 : 10,709,735,692.80 = 4,237,447,347.20 : x
  2. Step 2: Convert to fraction form
    7,139,823,795.20/10,709,735,692.80 = 4,237,447,347.20/x
  3. Step 3: Cross multiply
    7,139,823,795.20x = 10,709,735,692.80 × 4,237,447,347.20
  4. Step 4: Simplify right side
    7,139,823,795.20x = 45,381,941,100,668,510,208
  5. Step 5: Solve for x
    x = 45,381,941,100,668,510,208/7,139,823,795.20
  6. Step 6: Final answer
    x = 6,356,171,020.80

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Double scale
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Similar ratio
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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.