Home / 285,408,411,130.10-393,871,072,069.50-155,204,880,822.69

Finding the Fourth Proportional to 285,408,411,130.10, 393,871,072,069.50 and 155,204,880,822.69

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Solution

The fourth proportional to 285,408,411,130.10, 393,871,072,069.50 and 155,204,880,822.69 is: 214,186,794,839.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,408,411,130.10 : 393,871,072,069.50 = 155,204,880,822.69 : x
  2. Step 2: Convert to fraction form
    285,408,411,130.10/393,871,072,069.50 = 155,204,880,822.69/x
  3. Step 3: Cross multiply
    285,408,411,130.10x = 393,871,072,069.50 × 155,204,880,822.69
  4. Step 4: Simplify right side
    285,408,411,130.10x = 61,130,712,800,051,895,205,888
  5. Step 5: Solve for x
    x = 61,130,712,800,051,895,205,888/285,408,411,130.10
  6. Step 6: Final answer
    x = 214,186,794,839.02

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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.