Home / 147,622,673.20-221,434,009.80-139,730,774.35

Finding the Fourth Proportional to 147,622,673.20, 221,434,009.80 and 139,730,774.35

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Solution

The fourth proportional to 147,622,673.20, 221,434,009.80 and 139,730,774.35 is: 209,596,161.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,622,673.20 : 221,434,009.80 = 139,730,774.35 : x
  2. Step 2: Convert to fraction form
    147,622,673.20/221,434,009.80 = 139,730,774.35/x
  3. Step 3: Cross multiply
    147,622,673.20x = 221,434,009.80 × 139,730,774.35
  4. Step 4: Simplify right side
    147,622,673.20x = 30,941,145,656,779,488
  5. Step 5: Solve for x
    x = 30,941,145,656,779,488/147,622,673.20
  6. Step 6: Final answer
    x = 209,596,161.53

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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.