Home / 82,742,001.70-124,113,002.55-54,044,187.70

Finding the Fourth Proportional to 82,742,001.70, 124,113,002.55 and 54,044,187.70

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Solution

The fourth proportional to 82,742,001.70, 124,113,002.55 and 54,044,187.70 is: 81,066,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,742,001.70 : 124,113,002.55 = 54,044,187.70 : x
  2. Step 2: Convert to fraction form
    82,742,001.70/124,113,002.55 = 54,044,187.70/x
  3. Step 3: Cross multiply
    82,742,001.70x = 124,113,002.55 × 54,044,187.70
  4. Step 4: Simplify right side
    82,742,001.70x = 6,707,586,405,822,779
  5. Step 5: Solve for x
    x = 6,707,586,405,822,779/82,742,001.70
  6. Step 6: Final answer
    x = 81,066,281.55

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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.