Home / 191,506,657.40-287,259,986.10-133,056,020.60

Finding the Fourth Proportional to 191,506,657.40, 287,259,986.10 and 133,056,020.60

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Solution

The fourth proportional to 191,506,657.40, 287,259,986.10 and 133,056,020.60 is: 199,584,030.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,506,657.40 : 287,259,986.10 = 133,056,020.60 : x
  2. Step 2: Convert to fraction form
    191,506,657.40/287,259,986.10 = 133,056,020.60/x
  3. Step 3: Cross multiply
    191,506,657.40x = 287,259,986.10 × 133,056,020.60
  4. Step 4: Simplify right side
    191,506,657.40x = 38,221,670,628,077,312
  5. Step 5: Solve for x
    x = 38,221,670,628,077,312/191,506,657.40
  6. Step 6: Final answer
    x = 199,584,030.90

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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.