Home / 139,968,688.30-209,953,032.45-105,480,573.10

Finding the Fourth Proportional to 139,968,688.30, 209,953,032.45 and 105,480,573.10

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Solution

The fourth proportional to 139,968,688.30, 209,953,032.45 and 105,480,573.10 is: 158,220,859.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,688.30 : 209,953,032.45 = 105,480,573.10 : x
  2. Step 2: Convert to fraction form
    139,968,688.30/209,953,032.45 = 105,480,573.10/x
  3. Step 3: Cross multiply
    139,968,688.30x = 209,953,032.45 × 105,480,573.10
  4. Step 4: Simplify right side
    139,968,688.30x = 22,145,966,186,908,896
  5. Step 5: Solve for x
    x = 22,145,966,186,908,896/139,968,688.30
  6. Step 6: Final answer
    x = 158,220,859.65

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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.