Home / 489,909,733.08-734,748,509.52-140,145,017.28

Finding the Fourth Proportional to 489,909,733.08, 734,748,509.52 and 140,145,017.28

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Solution

The fourth proportional to 489,909,733.08, 734,748,509.52 and 140,145,017.28 is: 210,184,316.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,909,733.08 : 734,748,509.52 = 140,145,017.28 : x
  2. Step 2: Convert to fraction form
    489,909,733.08/734,748,509.52 = 140,145,017.28/x
  3. Step 3: Cross multiply
    489,909,733.08x = 734,748,509.52 × 140,145,017.28
  4. Step 4: Simplify right side
    489,909,733.08x = 102,971,342,563,134,640
  5. Step 5: Solve for x
    x = 102,971,342,563,134,640/489,909,733.08
  6. Step 6: Final answer
    x = 210,184,316.84

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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.