Home / 129,482,156.84-178,683,264.80-70,743,557.75

Finding the Fourth Proportional to 129,482,156.84, 178,683,264.80 and 70,743,557.75

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Solution

The fourth proportional to 129,482,156.84, 178,683,264.80 and 70,743,557.75 is: 97,624,955.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,482,156.84 : 178,683,264.80 = 70,743,557.75 : x
  2. Step 2: Convert to fraction form
    129,482,156.84/178,683,264.80 = 70,743,557.75/x
  3. Step 3: Cross multiply
    129,482,156.84x = 178,683,264.80 × 70,743,557.75
  4. Step 4: Simplify right side
    129,482,156.84x = 12,640,689,861,355,498
  5. Step 5: Solve for x
    x = 12,640,689,861,355,498/129,482,156.84
  6. Step 6: Final answer
    x = 97,624,955.98

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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.