Home / 685,549,603.76-1,028,000,235.66-265,567,675.40

Finding the Fourth Proportional to 685,549,603.76, 1,028,000,235.66 and 265,567,675.40

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Solution

The fourth proportional to 685,549,603.76, 1,028,000,235.66 and 265,567,675.40 is: 398,225,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,549,603.76 : 1,028,000,235.66 = 265,567,675.40 : x
  2. Step 2: Convert to fraction form
    685,549,603.76/1,028,000,235.66 = 265,567,675.40/x
  3. Step 3: Cross multiply
    685,549,603.76x = 1,028,000,235.66 × 265,567,675.40
  4. Step 4: Simplify right side
    685,549,603.76x = 273,003,632,894,878,368
  5. Step 5: Solve for x
    x = 273,003,632,894,878,368/685,549,603.76
  6. Step 6: Final answer
    x = 398,225,936.38

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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.