Finding the Fourth Proportional to 886,464,387.60, 1,329,696,581.40 and 537,272,221.20
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Solution
The fourth proportional to 886,464,387.60, 1,329,696,581.40 and 537,272,221.20 is: 805,908,331.80
Step by Step Solution
- Step 1: Write the proportion equation
886,464,387.60 : 1,329,696,581.40 = 537,272,221.20 : x - Step 2: Convert to fraction form
886,464,387.60/1,329,696,581.40 = 537,272,221.20/x - Step 3: Cross multiply
886,464,387.60x = 1,329,696,581.40 × 537,272,221.20 - Step 4: Simplify right side
886,464,387.60x = 714,409,035,810,824,704 - Step 5: Solve for x
x = 714,409,035,810,824,704/886,464,387.60 - Step 6: Final answer
x = 805,908,331.80
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Double scale
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Similar ratio
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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.