Home / 153,609,686.70-230,679,950.85-81,946,070.70

Finding the Fourth Proportional to 153,609,686.70, 230,679,950.85 and 81,946,070.70

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Solution

The fourth proportional to 153,609,686.70, 230,679,950.85 and 81,946,070.70 is: 123,060,699.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,609,686.70 : 230,679,950.85 = 81,946,070.70 : x
  2. Step 2: Convert to fraction form
    153,609,686.70/230,679,950.85 = 81,946,070.70/x
  3. Step 3: Cross multiply
    153,609,686.70x = 230,679,950.85 × 81,946,070.70
  4. Step 4: Simplify right side
    153,609,686.70x = 18,903,315,561,426,624
  5. Step 5: Solve for x
    x = 18,903,315,561,426,624/153,609,686.70
  6. Step 6: Final answer
    x = 123,060,699.93

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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.