Home / 85,752,133.70-128,628,200.55-49,472,428.10

Finding the Fourth Proportional to 85,752,133.70, 128,628,200.55 and 49,472,428.10

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Solution

The fourth proportional to 85,752,133.70, 128,628,200.55 and 49,472,428.10 is: 74,208,642.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,752,133.70 : 128,628,200.55 = 49,472,428.10 : x
  2. Step 2: Convert to fraction form
    85,752,133.70/128,628,200.55 = 49,472,428.10/x
  3. Step 3: Cross multiply
    85,752,133.70x = 128,628,200.55 × 49,472,428.10
  4. Step 4: Simplify right side
    85,752,133.70x = 6,363,549,403,342,255
  5. Step 5: Solve for x
    x = 6,363,549,403,342,255/85,752,133.70
  6. Step 6: Final answer
    x = 74,208,642.15

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1.5x scale

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.