Home / 285,408,411,125.60-393,871,072,063.29-155,204,880,818.17

Finding the Fourth Proportional to 285,408,411,125.60, 393,871,072,063.29 and 155,204,880,818.17

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Solution

The fourth proportional to 285,408,411,125.60, 393,871,072,063.29 and 155,204,880,818.17 is: 214,186,794,832.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,408,411,125.60 : 393,871,072,063.29 = 155,204,880,818.17 : x
  2. Step 2: Convert to fraction form
    285,408,411,125.60/393,871,072,063.29 = 155,204,880,818.17/x
  3. Step 3: Cross multiply
    285,408,411,125.60x = 393,871,072,063.29 × 155,204,880,818.17
  4. Step 4: Simplify right side
    285,408,411,125.60x = 61,130,712,797,307,771,813,888
  5. Step 5: Solve for x
    x = 61,130,712,797,307,771,813,888/285,408,411,125.60
  6. Step 6: Final answer
    x = 214,186,794,832.78

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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.