Home / 72,341,151,373.76-99,830,871,660.56-40,225,824,001.86

Finding the Fourth Proportional to 72,341,151,373.76, 99,830,871,660.56 and 40,225,824,001.86

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Solution

The fourth proportional to 72,341,151,373.76, 99,830,871,660.56 and 40,225,824,001.86 is: 55,511,683,144.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,341,151,373.76 : 99,830,871,660.56 = 40,225,824,001.86 : x
  2. Step 2: Convert to fraction form
    72,341,151,373.76/99,830,871,660.56 = 40,225,824,001.86/x
  3. Step 3: Cross multiply
    72,341,151,373.76x = 99,830,871,660.56 × 40,225,824,001.86
  4. Step 4: Simplify right side
    72,341,151,373.76x = 4,015,779,073,369,959,825,408
  5. Step 5: Solve for x
    x = 4,015,779,073,369,959,825,408/72,341,151,373.76
  6. Step 6: Final answer
    x = 55,511,683,144.52

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1.5x scale

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.