Home / 907,673,886.60-1,361,321,873.10-390,121,211.40

Finding the Fourth Proportional to 907,673,886.60, 1,361,321,873.10 and 390,121,211.40

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Solution

The fourth proportional to 907,673,886.60, 1,361,321,873.10 and 390,121,211.40 is: 585,100,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,673,886.60 : 1,361,321,873.10 = 390,121,211.40 : x
  2. Step 2: Convert to fraction form
    907,673,886.60/1,361,321,873.10 = 390,121,211.40/x
  3. Step 3: Cross multiply
    907,673,886.60x = 1,361,321,873.10 × 390,121,211.40
  4. Step 4: Simplify right side
    907,673,886.60x = 531,080,538,239,089,024
  5. Step 5: Solve for x
    x = 531,080,538,239,089,024/907,673,886.60
  6. Step 6: Final answer
    x = 585,100,602.85

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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.