Home / 42,768,547.11-64,153,345.50-28,288,157.67

Finding the Fourth Proportional to 42,768,547.11, 64,153,345.50 and 28,288,157.67

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Solution

The fourth proportional to 42,768,547.11, 64,153,345.50 and 28,288,157.67 is: 42,432,583.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,547.11 : 64,153,345.50 = 28,288,157.67 : x
  2. Step 2: Convert to fraction form
    42,768,547.11/64,153,345.50 = 28,288,157.67/x
  3. Step 3: Cross multiply
    42,768,547.11x = 64,153,345.50 × 28,288,157.67
  4. Step 4: Simplify right side
    42,768,547.11x = 1,814,779,952,561,985
  5. Step 5: Solve for x
    x = 1,814,779,952,561,985/42,768,547.11
  6. Step 6: Final answer
    x = 42,432,583.64

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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.