Home / 145,672,707.60-218,509,061.40-99,756,205.20

Finding the Fourth Proportional to 145,672,707.60, 218,509,061.40 and 99,756,205.20

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Solution

The fourth proportional to 145,672,707.60, 218,509,061.40 and 99,756,205.20 is: 149,634,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,672,707.60 : 218,509,061.40 = 99,756,205.20 : x
  2. Step 2: Convert to fraction form
    145,672,707.60/218,509,061.40 = 99,756,205.20/x
  3. Step 3: Cross multiply
    145,672,707.60x = 218,509,061.40 × 99,756,205.20
  4. Step 4: Simplify right side
    145,672,707.60x = 21,797,634,767,077,800
  5. Step 5: Solve for x
    x = 21,797,634,767,077,800/145,672,707.60
  6. Step 6: Final answer
    x = 149,634,307.80

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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.