Home / 254,201,430.30-381,302,145.45-72,424,988.70

Finding the Fourth Proportional to 254,201,430.30, 381,302,145.45 and 72,424,988.70

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Solution

The fourth proportional to 254,201,430.30, 381,302,145.45 and 72,424,988.70 is: 108,637,483.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,201,430.30 : 381,302,145.45 = 72,424,988.70 : x
  2. Step 2: Convert to fraction form
    254,201,430.30/381,302,145.45 = 72,424,988.70/x
  3. Step 3: Cross multiply
    254,201,430.30x = 381,302,145.45 × 72,424,988.70
  4. Step 4: Simplify right side
    254,201,430.30x = 27,615,803,575,502,008
  5. Step 5: Solve for x
    x = 27,615,803,575,502,008/254,201,430.30
  6. Step 6: Final answer
    x = 108,637,483.05

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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.