Finding the Fourth Proportional to 779,249,984.07, 1,075,471,964.04 and 477,781,966.85
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Solution
The fourth proportional to 779,249,984.07, 1,075,471,964.04 and 477,781,966.85 is: 659,404,710.65
Step by Step Solution
- Step 1: Write the proportion equation
779,249,984.07 : 1,075,471,964.04 = 477,781,966.85 : x - Step 2: Convert to fraction form
779,249,984.07/1,075,471,964.04 = 477,781,966.85/x - Step 3: Cross multiply
779,249,984.07x = 1,075,471,964.04 × 477,781,966.85 - Step 4: Simplify right side
779,249,984.07x = 513,841,110,271,063,680 - Step 5: Solve for x
x = 513,841,110,271,063,680/779,249,984.07 - Step 6: Final answer
x = 659,404,710.65
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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.