Home / 1,456,336,042.80-2,184,787,499.40-421,230,692.40

Finding the Fourth Proportional to 1,456,336,042.80, 2,184,787,499.40 and 421,230,692.40

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Solution

The fourth proportional to 1,456,336,042.80, 2,184,787,499.40 and 421,230,692.40 is: 631,928,019.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,336,042.80 : 2,184,787,499.40 = 421,230,692.40 : x
  2. Step 2: Convert to fraction form
    1,456,336,042.80/2,184,787,499.40 = 421,230,692.40/x
  3. Step 3: Cross multiply
    1,456,336,042.80x = 2,184,787,499.40 × 421,230,692.40
  4. Step 4: Simplify right side
    1,456,336,042.80x = 920,299,551,119,126,528
  5. Step 5: Solve for x
    x = 920,299,551,119,126,528/1,456,336,042.80
  6. Step 6: Final answer
    x = 631,928,019.41

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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.