Home / 99,421,020-149,136,844.41-31,269,026.16

Finding the Fourth Proportional to 99,421,020, 149,136,844.41 and 31,269,026.16

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Solution

The fourth proportional to 99,421,020, 149,136,844.41 and 31,269,026.16 is: 46,905,210.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,421,020 : 149,136,844.41 = 31,269,026.16 : x
  2. Step 2: Convert to fraction form
    99,421,020/149,136,844.41 = 31,269,026.16/x
  3. Step 3: Cross multiply
    99,421,020x = 149,136,844.41 × 31,269,026.16
  4. Step 4: Simplify right side
    99,421,020x = 4,663,363,889,276,140
  5. Step 5: Solve for x
    x = 4,663,363,889,276,140/99,421,020
  6. Step 6: Final answer
    x = 46,905,210.68

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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.