Home / 191,652,014.40-287,478,021.60-115,124,510.40

Finding the Fourth Proportional to 191,652,014.40, 287,478,021.60 and 115,124,510.40

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Solution

The fourth proportional to 191,652,014.40, 287,478,021.60 and 115,124,510.40 is: 172,686,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,652,014.40 : 287,478,021.60 = 115,124,510.40 : x
  2. Step 2: Convert to fraction form
    191,652,014.40/287,478,021.60 = 115,124,510.40/x
  3. Step 3: Cross multiply
    191,652,014.40x = 287,478,021.60 × 115,124,510.40
  4. Step 4: Simplify right side
    191,652,014.40x = 33,095,766,487,460,628
  5. Step 5: Solve for x
    x = 33,095,766,487,460,628/191,652,014.40
  6. Step 6: Final answer
    x = 172,686,765.60

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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.