Home / 70,205,409.60-105,308,114.40-31,941,657.60

Finding the Fourth Proportional to 70,205,409.60, 105,308,114.40 and 31,941,657.60

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Solution

The fourth proportional to 70,205,409.60, 105,308,114.40 and 31,941,657.60 is: 47,912,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,205,409.60 : 105,308,114.40 = 31,941,657.60 : x
  2. Step 2: Convert to fraction form
    70,205,409.60/105,308,114.40 = 31,941,657.60/x
  3. Step 3: Cross multiply
    70,205,409.60x = 105,308,114.40 × 31,941,657.60
  4. Step 4: Simplify right side
    70,205,409.60x = 3,363,715,732,666,430
  5. Step 5: Solve for x
    x = 3,363,715,732,666,430/70,205,409.60
  6. Step 6: Final answer
    x = 47,912,486.40

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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.