Home / 127,763,678.19-191,645,495.40-40,386,532.74

Finding the Fourth Proportional to 127,763,678.19, 191,645,495.40 and 40,386,532.74

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Solution

The fourth proportional to 127,763,678.19, 191,645,495.40 and 40,386,532.74 is: 60,579,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,763,678.19 : 191,645,495.40 = 40,386,532.74 : x
  2. Step 2: Convert to fraction form
    127,763,678.19/191,645,495.40 = 40,386,532.74/x
  3. Step 3: Cross multiply
    127,763,678.19x = 191,645,495.40 × 40,386,532.74
  4. Step 4: Simplify right side
    127,763,678.19x = 7,739,897,074,445,620
  5. Step 5: Solve for x
    x = 7,739,897,074,445,620/127,763,678.19
  6. Step 6: Final answer
    x = 60,579,792.19

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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.