Home / 72,587,623.40-108,881,435.10-70,908,007.40

Finding the Fourth Proportional to 72,587,623.40, 108,881,435.10 and 70,908,007.40

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Solution

The fourth proportional to 72,587,623.40, 108,881,435.10 and 70,908,007.40 is: 106,362,011.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,587,623.40 : 108,881,435.10 = 70,908,007.40 : x
  2. Step 2: Convert to fraction form
    72,587,623.40/108,881,435.10 = 70,908,007.40/x
  3. Step 3: Cross multiply
    72,587,623.40x = 108,881,435.10 × 70,908,007.40
  4. Step 4: Simplify right side
    72,587,623.40x = 7,720,565,605,793,420
  5. Step 5: Solve for x
    x = 7,720,565,605,793,420/72,587,623.40
  6. Step 6: Final answer
    x = 106,362,011.10

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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.