Home / 831,522,037.78-1,147,421,917.65-496,927,946.98

Finding the Fourth Proportional to 831,522,037.78, 1,147,421,917.65 and 496,927,946.98

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Solution

The fourth proportional to 831,522,037.78, 1,147,421,917.65 and 496,927,946.98 is: 685,713,657.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,522,037.78 : 1,147,421,917.65 = 496,927,946.98 : x
  2. Step 2: Convert to fraction form
    831,522,037.78/1,147,421,917.65 = 496,927,946.98/x
  3. Step 3: Cross multiply
    831,522,037.78x = 1,147,421,917.65 × 496,927,946.98
  4. Step 4: Simplify right side
    831,522,037.78x = 570,186,017,857,669,184
  5. Step 5: Solve for x
    x = 570,186,017,857,669,184/831,522,037.78
  6. Step 6: Final answer
    x = 685,713,657.55

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Double scale
Find fourth proportional to 831,522,038.78, 1,147,421,919.03 and 496,927,947.98
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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.