Home / 30,742,284.14-42,424,316.16-16,803,730.78

Finding the Fourth Proportional to 30,742,284.14, 42,424,316.16 and 16,803,730.78

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Solution

The fourth proportional to 30,742,284.14, 42,424,316.16 and 16,803,730.78 is: 23,189,128.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,742,284.14 : 42,424,316.16 = 16,803,730.78 : x
  2. Step 2: Convert to fraction form
    30,742,284.14/42,424,316.16 = 16,803,730.78/x
  3. Step 3: Cross multiply
    30,742,284.14x = 42,424,316.16 × 16,803,730.78
  4. Step 4: Simplify right side
    30,742,284.14x = 712,886,787,331,273.75
  5. Step 5: Solve for x
    x = 712,886,787,331,273.75/30,742,284.14
  6. Step 6: Final answer
    x = 23,189,128.83

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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.