Home / 1,119,626,813.70-1,679,440,220.55-712,487,895.30

Finding the Fourth Proportional to 1,119,626,813.70, 1,679,440,220.55 and 712,487,895.30

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Solution

The fourth proportional to 1,119,626,813.70, 1,679,440,220.55 and 712,487,895.30 is: 1,068,731,842.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,626,813.70 : 1,679,440,220.55 = 712,487,895.30 : x
  2. Step 2: Convert to fraction form
    1,119,626,813.70/1,679,440,220.55 = 712,487,895.30/x
  3. Step 3: Cross multiply
    1,119,626,813.70x = 1,679,440,220.55 × 712,487,895.30
  4. Step 4: Simplify right side
    1,119,626,813.70x = 1,196,580,828,021,837,312
  5. Step 5: Solve for x
    x = 1,196,580,828,021,837,312/1,119,626,813.70
  6. Step 6: Final answer
    x = 1,068,731,842.95

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Double scale
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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.