Home / 130,824,290.31-180,529,386.08-72,083,668.25

Finding the Fourth Proportional to 130,824,290.31, 180,529,386.08 and 72,083,668.25

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Solution

The fourth proportional to 130,824,290.31, 180,529,386.08 and 72,083,668.25 is: 99,470,980.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,824,290.31 : 180,529,386.08 = 72,083,668.25 : x
  2. Step 2: Convert to fraction form
    130,824,290.31/180,529,386.08 = 72,083,668.25/x
  3. Step 3: Cross multiply
    130,824,290.31x = 180,529,386.08 × 72,083,668.25
  4. Step 4: Simplify right side
    130,824,290.31x = 13,013,220,374,303,822
  5. Step 5: Solve for x
    x = 13,013,220,374,303,822/130,824,290.31
  6. Step 6: Final answer
    x = 99,470,980.07

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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.