Home / 470,154,454.40-704,543,246.40-421,632,214.40

Finding the Fourth Proportional to 470,154,454.40, 704,543,246.40 and 421,632,214.40

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Solution

The fourth proportional to 470,154,454.40, 704,543,246.40 and 421,632,214.40 is: 631,830,936.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,154,454.40 : 704,543,246.40 = 421,632,214.40 : x
  2. Step 2: Convert to fraction form
    470,154,454.40/704,543,246.40 = 421,632,214.40/x
  3. Step 3: Cross multiply
    470,154,454.40x = 704,543,246.40 × 421,632,214.40
  4. Step 4: Simplify right side
    470,154,454.40x = 297,058,129,120,196,800
  5. Step 5: Solve for x
    x = 297,058,129,120,196,800/470,154,454.40
  6. Step 6: Final answer
    x = 631,830,936.28

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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.