Home / 56,918,173.31-78,547,104.53-30,812,690.30

Finding the Fourth Proportional to 56,918,173.31, 78,547,104.53 and 30,812,690.30

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Solution

The fourth proportional to 56,918,173.31, 78,547,104.53 and 30,812,690.30 is: 42,521,526.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918,173.31 : 78,547,104.53 = 30,812,690.30 : x
  2. Step 2: Convert to fraction form
    56,918,173.31/78,547,104.53 = 30,812,690.30/x
  3. Step 3: Cross multiply
    56,918,173.31x = 78,547,104.53 × 30,812,690.30
  4. Step 4: Simplify right side
    56,918,173.31x = 2,420,247,605,297,818.50
  5. Step 5: Solve for x
    x = 2,420,247,605,297,818.50/56,918,173.31
  6. Step 6: Final answer
    x = 42,521,526.34

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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.