Home / 290,634,739.36-435,521,590.80-239,184,718.72

Finding the Fourth Proportional to 290,634,739.36, 435,521,590.80 and 239,184,718.72

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Solution

The fourth proportional to 290,634,739.36, 435,521,590.80 and 239,184,718.72 is: 358,422,772.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,634,739.36 : 435,521,590.80 = 239,184,718.72 : x
  2. Step 2: Convert to fraction form
    290,634,739.36/435,521,590.80 = 239,184,718.72/x
  3. Step 3: Cross multiply
    290,634,739.36x = 435,521,590.80 × 239,184,718.72
  4. Step 4: Simplify right side
    290,634,739.36x = 104,170,109,191,984,944
  5. Step 5: Solve for x
    x = 104,170,109,191,984,944/290,634,739.36
  6. Step 6: Final answer
    x = 358,422,772.93

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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.