Home / 90,099,280-124,439,649.60-61,075,515.52

Finding the Fourth Proportional to 90,099,280, 124,439,649.60 and 61,075,515.52

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Solution

The fourth proportional to 90,099,280, 124,439,649.60 and 61,075,515.52 is: 84,353,790.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,099,280 : 124,439,649.60 = 61,075,515.52 : x
  2. Step 2: Convert to fraction form
    90,099,280/124,439,649.60 = 61,075,515.52/x
  3. Step 3: Cross multiply
    90,099,280x = 124,439,649.60 × 61,075,515.52
  4. Step 4: Simplify right side
    90,099,280x = 7,600,215,750,448,162
  5. Step 5: Solve for x
    x = 7,600,215,750,448,162/90,099,280
  6. Step 6: Final answer
    x = 84,353,790.07

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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.