Home / 72,430,807,638.45-108,646,185,886.04-19,370,461,712.57

Finding the Fourth Proportional to 72,430,807,638.45, 108,646,185,886.04 and 19,370,461,712.57

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Solution

The fourth proportional to 72,430,807,638.45, 108,646,185,886.04 and 19,370,461,712.57 is: 29,055,685,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,430,807,638.45 : 108,646,185,886.04 = 19,370,461,712.57 : x
  2. Step 2: Convert to fraction form
    72,430,807,638.45/108,646,185,886.04 = 19,370,461,712.57/x
  3. Step 3: Cross multiply
    72,430,807,638.45x = 108,646,185,886.04 × 19,370,461,712.57
  4. Step 4: Simplify right side
    72,430,807,638.45x = 2,104,526,783,922,300,780,544
  5. Step 5: Solve for x
    x = 2,104,526,783,922,300,780,544/72,430,807,638.45
  6. Step 6: Final answer
    x = 29,055,685,730.13

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1.5x scale

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.