Home / 86,931,904.70-130,413,603.45-43,692,290.30

Finding the Fourth Proportional to 86,931,904.70, 130,413,603.45 and 43,692,290.30

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Solution

The fourth proportional to 86,931,904.70, 130,413,603.45 and 43,692,290.30 is: 65,546,349.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,931,904.70 : 130,413,603.45 = 43,692,290.30 : x
  2. Step 2: Convert to fraction form
    86,931,904.70/130,413,603.45 = 43,692,290.30/x
  3. Step 3: Cross multiply
    86,931,904.70x = 130,413,603.45 × 43,692,290.30
  4. Step 4: Simplify right side
    86,931,904.70x = 5,698,069,021,006,481
  5. Step 5: Solve for x
    x = 5,698,069,021,006,481/86,931,904.70
  6. Step 6: Final answer
    x = 65,546,349.65

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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.