Home / 285,408,411,131.61-393,871,072,071.57-155,204,880,824.19

Finding the Fourth Proportional to 285,408,411,131.61, 393,871,072,071.57 and 155,204,880,824.19

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Solution

The fourth proportional to 285,408,411,131.61, 393,871,072,071.57 and 155,204,880,824.19 is: 214,186,794,841.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,408,411,131.61 : 393,871,072,071.57 = 155,204,880,824.19 : x
  2. Step 2: Convert to fraction form
    285,408,411,131.61/393,871,072,071.57 = 155,204,880,824.19/x
  3. Step 3: Cross multiply
    285,408,411,131.61x = 393,871,072,071.57 × 155,204,880,824.19
  4. Step 4: Simplify right side
    285,408,411,131.61x = 61,130,712,800,963,971,776,512
  5. Step 5: Solve for x
    x = 61,130,712,800,963,971,776,512/285,408,411,131.61
  6. Step 6: Final answer
    x = 214,186,794,841.08

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1.5x scale

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.