Home / 139,828,032,078.45-209,742,048,117.67-139,828,032,078.45

Finding the Fourth Proportional to 139,828,032,078.45, 209,742,048,117.67 and 139,828,032,078.45

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Solution

The fourth proportional to 139,828,032,078.45, 209,742,048,117.67 and 139,828,032,078.45 is: 209,742,048,117.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,828,032,078.45 : 209,742,048,117.67 = 139,828,032,078.45 : x
  2. Step 2: Convert to fraction form
    139,828,032,078.45/209,742,048,117.67 = 139,828,032,078.45/x
  3. Step 3: Cross multiply
    139,828,032,078.45x = 209,742,048,117.67 × 139,828,032,078.45
  4. Step 4: Simplify right side
    139,828,032,078.45x = 29,327,817,832,397,367,410,688
  5. Step 5: Solve for x
    x = 29,327,817,832,397,367,410,688/139,828,032,078.45
  6. Step 6: Final answer
    x = 209,742,048,117.67

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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.