Home / 152,847,897.36-210,928,010.80-86,767,818.72

Finding the Fourth Proportional to 152,847,897.36, 210,928,010.80 and 86,767,818.72

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Solution

The fourth proportional to 152,847,897.36, 210,928,010.80 and 86,767,818.72 is: 119,738,404.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,847,897.36 : 210,928,010.80 = 86,767,818.72 : x
  2. Step 2: Convert to fraction form
    152,847,897.36/210,928,010.80 = 86,767,818.72/x
  3. Step 3: Cross multiply
    152,847,897.36x = 210,928,010.80 × 86,767,818.72
  4. Step 4: Simplify right side
    152,847,897.36x = 18,301,763,404,064,604
  5. Step 5: Solve for x
    x = 18,301,763,404,064,604/152,847,897.36
  6. Step 6: Final answer
    x = 119,738,404.78

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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.