Home / 153,687,981.06-212,088,779.75-83,123,670.06

Finding the Fourth Proportional to 153,687,981.06, 212,088,779.75 and 83,123,670.06

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Solution

The fourth proportional to 153,687,981.06, 212,088,779.75 and 83,123,670.06 is: 114,710,321.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,687,981.06 : 212,088,779.75 = 83,123,670.06 : x
  2. Step 2: Convert to fraction form
    153,687,981.06/212,088,779.75 = 83,123,670.06/x
  3. Step 3: Cross multiply
    153,687,981.06x = 212,088,779.75 × 83,123,670.06
  4. Step 4: Simplify right side
    153,687,981.06x = 17,629,597,751,574,818
  5. Step 5: Solve for x
    x = 17,629,597,751,574,818/153,687,981.06
  6. Step 6: Final answer
    x = 114,710,321.72

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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.