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Finding the Fourth Proportional to 423,398,804.42, 634,954,963.59 and 161,021,019.11

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Solution

The fourth proportional to 423,398,804.42, 634,954,963.59 and 161,021,019.11 is: 241,477,052.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,398,804.42 : 634,954,963.59 = 161,021,019.11 : x
  2. Step 2: Convert to fraction form
    423,398,804.42/634,954,963.59 = 161,021,019.11/x
  3. Step 3: Cross multiply
    423,398,804.42x = 634,954,963.59 × 161,021,019.11
  4. Step 4: Simplify right side
    423,398,804.42x = 102,241,095,323,039,968
  5. Step 5: Solve for x
    x = 102,241,095,323,039,968/423,398,804.42
  6. Step 6: Final answer
    x = 241,477,052.50

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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.