Home / 420,046,998.60-630,070,497.90-113,338,619.40

Finding the Fourth Proportional to 420,046,998.60, 630,070,497.90 and 113,338,619.40

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Solution

The fourth proportional to 420,046,998.60, 630,070,497.90 and 113,338,619.40 is: 170,007,929.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,046,998.60 : 630,070,497.90 = 113,338,619.40 : x
  2. Step 2: Convert to fraction form
    420,046,998.60/630,070,497.90 = 113,338,619.40/x
  3. Step 3: Cross multiply
    420,046,998.60x = 630,070,497.90 × 113,338,619.40
  4. Step 4: Simplify right side
    420,046,998.60x = 71,411,320,356,656,600
  5. Step 5: Solve for x
    x = 71,411,320,356,656,600/420,046,998.60
  6. Step 6: Final answer
    x = 170,007,929.10

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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.