Home / 346,789,355.20-520,184,032.80-142,464,068.80

Finding the Fourth Proportional to 346,789,355.20, 520,184,032.80 and 142,464,068.80

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Solution

The fourth proportional to 346,789,355.20, 520,184,032.80 and 142,464,068.80 is: 213,696,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,789,355.20 : 520,184,032.80 = 142,464,068.80 : x
  2. Step 2: Convert to fraction form
    346,789,355.20/520,184,032.80 = 142,464,068.80/x
  3. Step 3: Cross multiply
    346,789,355.20x = 520,184,032.80 × 142,464,068.80
  4. Step 4: Simplify right side
    346,789,355.20x = 74,107,533,837,480,672
  5. Step 5: Solve for x
    x = 74,107,533,837,480,672/346,789,355.20
  6. Step 6: Final answer
    x = 213,696,103.20

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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.