Home / 130,776,881.16-180,486,270.66-72,045,564.76

Finding the Fourth Proportional to 130,776,881.16, 180,486,270.66 and 72,045,564.76

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Solution

The fourth proportional to 130,776,881.16, 180,486,270.66 and 72,045,564.76 is: 99,430,688.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,776,881.16 : 180,486,270.66 = 72,045,564.76 : x
  2. Step 2: Convert to fraction form
    130,776,881.16/180,486,270.66 = 72,045,564.76/x
  3. Step 3: Cross multiply
    130,776,881.16x = 180,486,270.66 × 72,045,564.76
  4. Step 4: Simplify right side
    130,776,881.16x = 13,003,235,301,125,918
  5. Step 5: Solve for x
    x = 13,003,235,301,125,918/130,776,881.16
  6. Step 6: Final answer
    x = 99,430,688.25

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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.