Home / 100,879,931.70-151,001,032.95-72,182,117.70

Finding the Fourth Proportional to 100,879,931.70, 151,001,032.95 and 72,182,117.70

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Solution

The fourth proportional to 100,879,931.70, 151,001,032.95 and 72,182,117.70 is: 108,045,020.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,879,931.70 : 151,001,032.95 = 72,182,117.70 : x
  2. Step 2: Convert to fraction form
    100,879,931.70/151,001,032.95 = 72,182,117.70/x
  3. Step 3: Cross multiply
    100,879,931.70x = 151,001,032.95 × 72,182,117.70
  4. Step 4: Simplify right side
    100,879,931.70x = 10,899,574,333,218,478
  5. Step 5: Solve for x
    x = 10,899,574,333,218,478/100,879,931.70
  6. Step 6: Final answer
    x = 108,045,020.94

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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.