Home / 56,771,275.36-78,344,389.92-30,665,792.56

Finding the Fourth Proportional to 56,771,275.36, 78,344,389.92 and 30,665,792.56

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Solution

The fourth proportional to 56,771,275.36, 78,344,389.92 and 30,665,792.56 is: 42,318,809.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,771,275.36 : 78,344,389.92 = 30,665,792.56 : x
  2. Step 2: Convert to fraction form
    56,771,275.36/78,344,389.92 = 30,665,792.56/x
  3. Step 3: Cross multiply
    56,771,275.36x = 78,344,389.92 × 30,665,792.56
  4. Step 4: Simplify right side
    56,771,275.36x = 2,402,492,809,526,475
  5. Step 5: Solve for x
    x = 2,402,492,809,526,475/56,771,275.36
  6. Step 6: Final answer
    x = 42,318,809.90

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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.