Home / 55,161,980.80-82,742,971.20-49,209,841.60

Finding the Fourth Proportional to 55,161,980.80, 82,742,971.20 and 49,209,841.60

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Solution

The fourth proportional to 55,161,980.80, 82,742,971.20 and 49,209,841.60 is: 73,814,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,161,980.80 : 82,742,971.20 = 49,209,841.60 : x
  2. Step 2: Convert to fraction form
    55,161,980.80/82,742,971.20 = 49,209,841.60/x
  3. Step 3: Cross multiply
    55,161,980.80x = 82,742,971.20 × 49,209,841.60
  4. Step 4: Simplify right side
    55,161,980.80x = 4,071,768,506,265,362
  5. Step 5: Solve for x
    x = 4,071,768,506,265,362/55,161,980.80
  6. Step 6: Final answer
    x = 73,814,762.40

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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.