Home / 85,248,258.10-127,788,406.35-42,124,117.30

Finding the Fourth Proportional to 85,248,258.10, 127,788,406.35 and 42,124,117.30

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Solution

The fourth proportional to 85,248,258.10, 127,788,406.35 and 42,124,117.30 is: 63,144,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248,258.10 : 127,788,406.35 = 42,124,117.30 : x
  2. Step 2: Convert to fraction form
    85,248,258.10/127,788,406.35 = 42,124,117.30/x
  3. Step 3: Cross multiply
    85,248,258.10x = 127,788,406.35 × 42,124,117.30
  4. Step 4: Simplify right side
    85,248,258.10x = 5,382,973,818,667,464
  5. Step 5: Solve for x
    x = 5,382,973,818,667,464/85,248,258.10
  6. Step 6: Final answer
    x = 63,144,678.13

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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.