Home / 346,677,307.60-520,015,961.40-142,352,021.20

Finding the Fourth Proportional to 346,677,307.60, 520,015,961.40 and 142,352,021.20

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Solution

The fourth proportional to 346,677,307.60, 520,015,961.40 and 142,352,021.20 is: 213,528,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,677,307.60 : 520,015,961.40 = 142,352,021.20 : x
  2. Step 2: Convert to fraction form
    346,677,307.60/520,015,961.40 = 142,352,021.20/x
  3. Step 3: Cross multiply
    346,677,307.60x = 520,015,961.40 × 142,352,021.20
  4. Step 4: Simplify right side
    346,677,307.60x = 74,025,323,161,551,168
  5. Step 5: Solve for x
    x = 74,025,323,161,551,168/346,677,307.60
  6. Step 6: Final answer
    x = 213,528,031.80

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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.