Home / 1,310,637,689.07-1,808,679,941.37-707,808,261.45

Finding the Fourth Proportional to 1,310,637,689.07, 1,808,679,941.37 and 707,808,261.45

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Solution

The fourth proportional to 1,310,637,689.07, 1,808,679,941.37 and 707,808,261.45 is: 976,775,363.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,637,689.07 : 1,808,679,941.37 = 707,808,261.45 : x
  2. Step 2: Convert to fraction form
    1,310,637,689.07/1,808,679,941.37 = 707,808,261.45/x
  3. Step 3: Cross multiply
    1,310,637,689.07x = 1,808,679,941.37 × 707,808,261.45
  4. Step 4: Simplify right side
    1,310,637,689.07x = 1,280,198,604,820,587,520
  5. Step 5: Solve for x
    x = 1,280,198,604,820,587,520/1,310,637,689.07
  6. Step 6: Final answer
    x = 976,775,363.24

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Double scale
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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.