Home / 161,642,742,121.16-223,068,427,509.39-89,389,696,028.84

Finding the Fourth Proportional to 161,642,742,121.16, 223,068,427,509.39 and 89,389,696,028.84

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Solution

The fourth proportional to 161,642,742,121.16, 223,068,427,509.39 and 89,389,696,028.84 is: 123,358,578,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,642,742,121.16 : 223,068,427,509.39 = 89,389,696,028.84 : x
  2. Step 2: Convert to fraction form
    161,642,742,121.16/223,068,427,509.39 = 89,389,696,028.84/x
  3. Step 3: Cross multiply
    161,642,742,121.16x = 223,068,427,509.39 × 89,389,696,028.84
  4. Step 4: Simplify right side
    161,642,742,121.16x = 19,940,018,928,695,702,978,560
  5. Step 5: Solve for x
    x = 19,940,018,928,695,702,978,560/161,642,742,121.16
  6. Step 6: Final answer
    x = 123,358,578,721.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.