Home / 129,154,153.49-178,227,598.05-76,247,903.17

Finding the Fourth Proportional to 129,154,153.49, 178,227,598.05 and 76,247,903.17

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Solution

The fourth proportional to 129,154,153.49, 178,227,598.05 and 76,247,903.17 is: 105,219,075.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,154,153.49 : 178,227,598.05 = 76,247,903.17 : x
  2. Step 2: Convert to fraction form
    129,154,153.49/178,227,598.05 = 76,247,903.17/x
  3. Step 3: Cross multiply
    129,154,153.49x = 178,227,598.05 × 76,247,903.17
  4. Step 4: Simplify right side
    129,154,153.49x = 13,589,480,637,956,840
  5. Step 5: Solve for x
    x = 13,589,480,637,956,840/129,154,153.49
  6. Step 6: Final answer
    x = 105,219,075.58

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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.