Home / 840,184,914.13-1,158,377,333.03-688,920,257.23

Finding the Fourth Proportional to 840,184,914.13, 1,158,377,333.03 and 688,920,257.23

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Solution

The fourth proportional to 840,184,914.13, 1,158,377,333.03 and 688,920,257.23 is: 949,826,159.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,184,914.13 : 1,158,377,333.03 = 688,920,257.23 : x
  2. Step 2: Convert to fraction form
    840,184,914.13/1,158,377,333.03 = 688,920,257.23/x
  3. Step 3: Cross multiply
    840,184,914.13x = 1,158,377,333.03 × 688,920,257.23
  4. Step 4: Simplify right side
    840,184,914.13x = 798,029,610,236,637,440
  5. Step 5: Solve for x
    x = 798,029,610,236,637,440/840,184,914.13
  6. Step 6: Final answer
    x = 949,826,159.48

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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.