Home / 145,120,554.40-200,258,804.88-90,115,230.88

Finding the Fourth Proportional to 145,120,554.40, 200,258,804.88 and 90,115,230.88

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Solution

The fourth proportional to 145,120,554.40, 200,258,804.88 and 90,115,230.88 is: 124,354,323.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,120,554.40 : 200,258,804.88 = 90,115,230.88 : x
  2. Step 2: Convert to fraction form
    145,120,554.40/200,258,804.88 = 90,115,230.88/x
  3. Step 3: Cross multiply
    145,120,554.40x = 200,258,804.88 × 90,115,230.88
  4. Step 4: Simplify right side
    145,120,554.40x = 18,046,368,437,514,068
  5. Step 5: Solve for x
    x = 18,046,368,437,514,068/145,120,554.40
  6. Step 6: Final answer
    x = 124,354,323.98

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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.