Home / 145,221,888.02-200,406,208.52-80,031,792.02

Finding the Fourth Proportional to 145,221,888.02, 200,406,208.52 and 80,031,792.02

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Solution

The fourth proportional to 145,221,888.02, 200,406,208.52 and 80,031,792.02 is: 110,443,874.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,221,888.02 : 200,406,208.52 = 80,031,792.02 : x
  2. Step 2: Convert to fraction form
    145,221,888.02/200,406,208.52 = 80,031,792.02/x
  3. Step 3: Cross multiply
    145,221,888.02x = 200,406,208.52 × 80,031,792.02
  4. Step 4: Simplify right side
    145,221,888.02x = 16,038,867,998,987,442
  5. Step 5: Solve for x
    x = 16,038,867,998,987,442/145,221,888.02
  6. Step 6: Final answer
    x = 110,443,874.67

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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.