Home / 130,769,971.23-180,462,570.07-72,032,636.32

Finding the Fourth Proportional to 130,769,971.23, 180,462,570.07 and 72,032,636.32

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Solution

The fourth proportional to 130,769,971.23, 180,462,570.07 and 72,032,636.32 is: 99,405,043.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,769,971.23 : 180,462,570.07 = 72,032,636.32 : x
  2. Step 2: Convert to fraction form
    130,769,971.23/180,462,570.07 = 72,032,636.32/x
  3. Step 3: Cross multiply
    130,769,971.23x = 180,462,570.07 × 72,032,636.32
  4. Step 4: Simplify right side
    130,769,971.23x = 12,999,194,678,593,588
  5. Step 5: Solve for x
    x = 12,999,194,678,593,588/130,769,971.23
  6. Step 6: Final answer
    x = 99,405,043.50

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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.