Finding the Fourth Proportional to 960,867,248.68, 1,325,961,266.34 and 520,824,652.84
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Solution
The fourth proportional to 960,867,248.68, 1,325,961,266.34 and 520,824,652.84 is: 718,718,758.67
Step by Step Solution
- Step 1: Write the proportion equation
960,867,248.68 : 1,325,961,266.34 = 520,824,652.84 : x - Step 2: Convert to fraction form
960,867,248.68/1,325,961,266.34 = 520,824,652.84/x - Step 3: Cross multiply
960,867,248.68x = 1,325,961,266.34 × 520,824,652.84 - Step 4: Simplify right side
960,867,248.68x = 690,593,316,220,817,152 - Step 5: Solve for x
x = 690,593,316,220,817,152/960,867,248.68 - Step 6: Final answer
x = 718,718,758.67
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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.