Home / 47,148,507.18-70,722,779.40-21,210,511.50

Finding the Fourth Proportional to 47,148,507.18, 70,722,779.40 and 21,210,511.50

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Solution

The fourth proportional to 47,148,507.18, 70,722,779.40 and 21,210,511.50 is: 31,815,775.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,148,507.18 : 70,722,779.40 = 21,210,511.50 : x
  2. Step 2: Convert to fraction form
    47,148,507.18/70,722,779.40 = 21,210,511.50/x
  3. Step 3: Cross multiply
    47,148,507.18x = 70,722,779.40 × 21,210,511.50
  4. Step 4: Simplify right side
    47,148,507.18x = 1,500,066,325,775,663.25
  5. Step 5: Solve for x
    x = 1,500,066,325,775,663.25/47,148,507.18
  6. Step 6: Final answer
    x = 31,815,775.63

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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.