Finding the Fourth Proportional to 977,132,403.60, 1,465,911,181.80 and 321,971,938.80
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Solution
The fourth proportional to 977,132,403.60, 1,465,911,181.80 and 321,971,938.80 is: 483,027,953.61
Step by Step Solution
- Step 1: Write the proportion equation
977,132,403.60 : 1,465,911,181.80 = 321,971,938.80 : x - Step 2: Convert to fraction form
977,132,403.60/1,465,911,181.80 = 321,971,938.80/x - Step 3: Cross multiply
977,132,403.60x = 1,465,911,181.80 × 321,971,938.80 - Step 4: Simplify right side
977,132,403.60x = 471,982,265,312,745,280 - Step 5: Solve for x
x = 471,982,265,312,745,280/977,132,403.60 - Step 6: Final answer
x = 483,027,953.61
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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.