Home / 130,206,699.61-179,834,373.58-85,751,396.49

Finding the Fourth Proportional to 130,206,699.61, 179,834,373.58 and 85,751,396.49

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Solution

The fourth proportional to 130,206,699.61, 179,834,373.58 and 85,751,396.49 is: 118,435,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,206,699.61 : 179,834,373.58 = 85,751,396.49 : x
  2. Step 2: Convert to fraction form
    130,206,699.61/179,834,373.58 = 85,751,396.49/x
  3. Step 3: Cross multiply
    130,206,699.61x = 179,834,373.58 × 85,751,396.49
  4. Step 4: Simplify right side
    130,206,699.61x = 15,421,048,671,805,370
  5. Step 5: Solve for x
    x = 15,421,048,671,805,370/130,206,699.61
  6. Step 6: Final answer
    x = 118,435,139.81

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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.