Home / 90,699,264,019.35-136,048,896,029.02-55,435,390,176.15

Finding the Fourth Proportional to 90,699,264,019.35, 136,048,896,029.02 and 55,435,390,176.15

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Solution

The fourth proportional to 90,699,264,019.35, 136,048,896,029.02 and 55,435,390,176.15 is: 83,153,085,264.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,699,264,019.35 : 136,048,896,029.02 = 55,435,390,176.15 : x
  2. Step 2: Convert to fraction form
    90,699,264,019.35/136,048,896,029.02 = 55,435,390,176.15/x
  3. Step 3: Cross multiply
    90,699,264,019.35x = 136,048,896,029.02 × 55,435,390,176.15
  4. Step 4: Simplify right side
    90,699,264,019.35x = 7,541,923,634,403,188,146,176
  5. Step 5: Solve for x
    x = 7,541,923,634,403,188,146,176/90,699,264,019.35
  6. Step 6: Final answer
    x = 83,153,085,264.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.