Home / 840,148,245.80-1,260,222,368.70-355,411,068.20

Finding the Fourth Proportional to 840,148,245.80, 1,260,222,368.70 and 355,411,068.20

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Solution

The fourth proportional to 840,148,245.80, 1,260,222,368.70 and 355,411,068.20 is: 533,116,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,148,245.80 : 1,260,222,368.70 = 355,411,068.20 : x
  2. Step 2: Convert to fraction form
    840,148,245.80/1,260,222,368.70 = 355,411,068.20/x
  3. Step 3: Cross multiply
    840,148,245.80x = 1,260,222,368.70 × 355,411,068.20
  4. Step 4: Simplify right side
    840,148,245.80x = 447,896,978,229,201,216
  5. Step 5: Solve for x
    x = 447,896,978,229,201,216/840,148,245.80
  6. Step 6: Final answer
    x = 533,116,602.30

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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.