Home / 209,574,948.80-314,014,889.46-127,445,390.84

Finding the Fourth Proportional to 209,574,948.80, 314,014,889.46 and 127,445,390.84

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Solution

The fourth proportional to 209,574,948.80, 314,014,889.46 and 127,445,390.84 is: 190,956,746.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,574,948.80 : 314,014,889.46 = 127,445,390.84 : x
  2. Step 2: Convert to fraction form
    209,574,948.80/314,014,889.46 = 127,445,390.84/x
  3. Step 3: Cross multiply
    209,574,948.80x = 314,014,889.46 × 127,445,390.84
  4. Step 4: Simplify right side
    209,574,948.80x = 40,019,750,316,809,096
  5. Step 5: Solve for x
    x = 40,019,750,316,809,096/209,574,948.80
  6. Step 6: Final answer
    x = 190,956,746.24

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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.