Home / 319,308,045.60-478,962,068.40-137,909,517.60

Finding the Fourth Proportional to 319,308,045.60, 478,962,068.40 and 137,909,517.60

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Solution

The fourth proportional to 319,308,045.60, 478,962,068.40 and 137,909,517.60 is: 206,864,276.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,308,045.60 : 478,962,068.40 = 137,909,517.60 : x
  2. Step 2: Convert to fraction form
    319,308,045.60/478,962,068.40 = 137,909,517.60/x
  3. Step 3: Cross multiply
    319,308,045.60x = 478,962,068.40 × 137,909,517.60
  4. Step 4: Simplify right side
    319,308,045.60x = 66,053,427,801,742,200
  5. Step 5: Solve for x
    x = 66,053,427,801,742,200/319,308,045.60
  6. Step 6: Final answer
    x = 206,864,276.40

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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.