Home / 285,408,411,126.60-393,871,072,064.67-155,204,880,819.17

Finding the Fourth Proportional to 285,408,411,126.60, 393,871,072,064.67 and 155,204,880,819.17

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Solution

The fourth proportional to 285,408,411,126.60, 393,871,072,064.67 and 155,204,880,819.17 is: 214,186,794,834.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,408,411,126.60 : 393,871,072,064.67 = 155,204,880,819.17 : x
  2. Step 2: Convert to fraction form
    285,408,411,126.60/393,871,072,064.67 = 155,204,880,819.17/x
  3. Step 3: Cross multiply
    285,408,411,126.60x = 393,871,072,064.67 × 155,204,880,819.17
  4. Step 4: Simplify right side
    285,408,411,126.60x = 61,130,712,797,915,828,453,376
  5. Step 5: Solve for x
    x = 61,130,712,797,915,828,453,376/285,408,411,126.60
  6. Step 6: Final answer
    x = 214,186,794,834.16

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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.