Home / 72,871,397.40-109,307,096.10-19,018,709.40

Finding the Fourth Proportional to 72,871,397.40, 109,307,096.10 and 19,018,709.40

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Solution

The fourth proportional to 72,871,397.40, 109,307,096.10 and 19,018,709.40 is: 28,528,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,871,397.40 : 109,307,096.10 = 19,018,709.40 : x
  2. Step 2: Convert to fraction form
    72,871,397.40/109,307,096.10 = 19,018,709.40/x
  3. Step 3: Cross multiply
    72,871,397.40x = 109,307,096.10 × 19,018,709.40
  4. Step 4: Simplify right side
    72,871,397.40x = 2,078,879,896,083,773
  5. Step 5: Solve for x
    x = 2,078,879,896,083,773/72,871,397.40
  6. Step 6: Final answer
    x = 28,528,064.10

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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.