Home / 1,210,558,658.40-1,812,011,612.40-866,184,890.40

Finding the Fourth Proportional to 1,210,558,658.40, 1,812,011,612.40 and 866,184,890.40

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Solution

The fourth proportional to 1,210,558,658.40, 1,812,011,612.40 and 866,184,890.40 is: 1,296,539,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,558,658.40 : 1,812,011,612.40 = 866,184,890.40 : x
  2. Step 2: Convert to fraction form
    1,210,558,658.40/1,812,011,612.40 = 866,184,890.40/x
  3. Step 3: Cross multiply
    1,210,558,658.40x = 1,812,011,612.40 × 866,184,890.40
  4. Step 4: Simplify right side
    1,210,558,658.40x = 1,569,537,079,890,221,312
  5. Step 5: Solve for x
    x = 1,569,537,079,890,221,312/1,210,558,658.40
  6. Step 6: Final answer
    x = 1,296,539,468.78

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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.