Home / 18,742,557.51-28,106,740.67-10,218,253.59

Finding the Fourth Proportional to 18,742,557.51, 28,106,740.67 and 10,218,253.59

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Solution

The fourth proportional to 18,742,557.51, 28,106,740.67 and 10,218,253.59 is: 15,323,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742,557.51 : 28,106,740.67 = 10,218,253.59 : x
  2. Step 2: Convert to fraction form
    18,742,557.51/28,106,740.67 = 10,218,253.59/x
  3. Step 3: Cross multiply
    18,742,557.51x = 28,106,740.67 × 10,218,253.59
  4. Step 4: Simplify right side
    18,742,557.51x = 287,201,803,703,335.25
  5. Step 5: Solve for x
    x = 287,201,803,703,335.25/18,742,557.51
  6. Step 6: Final answer
    x = 15,323,511.94

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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.