Home / 210,364,008.76-315,531,047.86-64,782,389.82

Finding the Fourth Proportional to 210,364,008.76, 315,531,047.86 and 64,782,389.82

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Solution

The fourth proportional to 210,364,008.76, 315,531,047.86 and 64,782,389.82 is: 97,168,976.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,364,008.76 : 315,531,047.86 = 64,782,389.82 : x
  2. Step 2: Convert to fraction form
    210,364,008.76/315,531,047.86 = 64,782,389.82/x
  3. Step 3: Cross multiply
    210,364,008.76x = 315,531,047.86 × 64,782,389.82
  4. Step 4: Simplify right side
    210,364,008.76x = 20,440,855,342,779,596
  5. Step 5: Solve for x
    x = 20,440,855,342,779,596/210,364,008.76
  6. Step 6: Final answer
    x = 97,168,976.12

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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.