Home / 281,607,368.08-388,636,127.40-157,848,077.20

Finding the Fourth Proportional to 281,607,368.08, 388,636,127.40 and 157,848,077.20

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Solution

The fourth proportional to 281,607,368.08, 388,636,127.40 and 157,848,077.20 is: 217,840,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,607,368.08 : 388,636,127.40 = 157,848,077.20 : x
  2. Step 2: Convert to fraction form
    281,607,368.08/388,636,127.40 = 157,848,077.20/x
  3. Step 3: Cross multiply
    281,607,368.08x = 388,636,127.40 × 157,848,077.20
  4. Step 4: Simplify right side
    281,607,368.08x = 61,345,465,440,544,224
  5. Step 5: Solve for x
    x = 61,345,465,440,544,224/281,607,368.08
  6. Step 6: Final answer
    x = 217,840,413.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.