Home / 12,130,640,850.47-16,740,931,031.10-6,778,331,135.55

Finding the Fourth Proportional to 12,130,640,850.47, 16,740,931,031.10 and 6,778,331,135.55

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Solution

The fourth proportional to 12,130,640,850.47, 16,740,931,031.10 and 6,778,331,135.55 is: 9,354,458,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130,640,850.47 : 16,740,931,031.10 = 6,778,331,135.55 : x
  2. Step 2: Convert to fraction form
    12,130,640,850.47/16,740,931,031.10 = 6,778,331,135.55/x
  3. Step 3: Cross multiply
    12,130,640,850.47x = 16,740,931,031.10 × 6,778,331,135.55
  4. Step 4: Simplify right side
    12,130,640,850.47x = 113,475,574,046,200,299,520
  5. Step 5: Solve for x
    x = 113,475,574,046,200,299,520/12,130,640,850.47
  6. Step 6: Final answer
    x = 9,354,458,304.80

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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.