Home / 70,492,896.77-105,740,075.37-21,309,159.74

Finding the Fourth Proportional to 70,492,896.77, 105,740,075.37 and 21,309,159.74

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Solution

The fourth proportional to 70,492,896.77, 105,740,075.37 and 21,309,159.74 is: 31,963,960.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,492,896.77 : 105,740,075.37 = 21,309,159.74 : x
  2. Step 2: Convert to fraction form
    70,492,896.77/105,740,075.37 = 21,309,159.74/x
  3. Step 3: Cross multiply
    70,492,896.77x = 105,740,075.37 × 21,309,159.74
  4. Step 4: Simplify right side
    70,492,896.77x = 2,253,232,156,978,969.50
  5. Step 5: Solve for x
    x = 2,253,232,156,978,969.50/70,492,896.77
  6. Step 6: Final answer
    x = 31,963,960.35

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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.